- Fix main() to use two separated sockets for the two transports
when "-P port" is specified. It invoked svc{tcp,udp}_create()
for only one of the two allocated sockets, and prevented the
TCP socket from binding to as the result.
- Use TI-RPC functions and handle sockets in a
transport-independent way. At this moment only AF_INET ("udp"
and "tcp") is supported because others need rewrites of ACL
handling and yp clients.
- Add '-h addr' to specify addresses to bind to.
- Convert _msgout() to use variable argument lists and remove
asprintf() for error strings.
- Remove register storage class specifier.
Discussed with: kuriyama
MFC after: 1 week
This commit is contained in:
Hiroki Sato
parent
de0bd6f76b
commit
f96264e375
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=200478
@ -40,25 +40,30 @@ __FBSDID("$FreeBSD$");
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* rpcgen.new, and later modified.
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*/
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/wait.h>
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#include "yp.h"
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#include <err.h>
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#include <errno.h>
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#include <memory.h>
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#include <stdio.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <stdlib.h> /* getenv, exit */
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#include <string.h> /* strcmp */
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#include <syslog.h>
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#include <unistd.h>
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#include <rpc/pmap_clnt.h> /* for pmap_unset */
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#ifdef __cplusplus
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#include <sysent.h> /* getdtablesize, open */
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#endif /* __cplusplus */
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <sys/wait.h>
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#include <netdb.h>
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#include "yp_extern.h"
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#include <netconfig.h>
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#include <rpc/rpc.h>
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#include <rpc/rpc_com.h>
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#ifndef SIG_PF
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#define SIG_PF void(*)(int)
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@ -68,14 +73,17 @@ __FBSDID("$FreeBSD$");
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int _rpcpmstart; /* Started by a port monitor ? */
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static int _rpcfdtype;
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/* Whether Stream or Datagram ? */
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static int _rpcaf;
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static int _rpcfd;
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/* States a server can be in wrt request */
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#define _IDLE 0
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#define _SERVED 1
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#define _SERVING 2
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extern void ypprog_1(struct svc_req *, register SVCXPRT *);
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extern void ypprog_2(struct svc_req *, register SVCXPRT *);
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extern void ypprog_1(struct svc_req *, SVCXPRT *);
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extern void ypprog_2(struct svc_req *, SVCXPRT *);
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extern int _rpc_dtablesize(void);
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extern int _rpcsvcstate; /* Set when a request is serviced */
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char *progname = "ypserv";
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@ -84,26 +92,37 @@ char *yp_dir = _PATH_YP;
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int do_dns = 0;
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int resfd;
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struct socktype {
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const char *st_name;
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int st_type;
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struct socklistent {
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int sle_sock;
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struct sockaddr_storage sle_ss;
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SLIST_ENTRY(socklistent) sle_next;
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};
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static struct socktype stlist[] = {
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{ "tcp", SOCK_STREAM },
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{ "udp", SOCK_DGRAM },
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{ NULL, 0 }
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static SLIST_HEAD(, socklistent) sle_head =
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SLIST_HEAD_INITIALIZER(&sle_head);
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struct bindaddrlistent {
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const char *ble_hostname;
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SLIST_ENTRY(bindaddrlistent) ble_next;
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};
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static SLIST_HEAD(, bindaddrlistent) ble_head =
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SLIST_HEAD_INITIALIZER(&ble_head);
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static char *servname = "0";
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static
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void _msgout(char* msg)
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void _msgout(char* msg, ...)
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{
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va_list ap;
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va_start(ap, msg);
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if (debug) {
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if (_rpcpmstart)
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syslog(LOG_ERR, "%s", msg);
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vsyslog(LOG_ERR, msg, ap);
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else
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warnx("%s", msg);
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vwarnx(msg, ap);
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} else
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syslog(LOG_ERR, "%s", msg);
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vsyslog(LOG_ERR, msg, ap);
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va_end(ap);
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}
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pid_t yp_pid;
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@ -162,8 +181,8 @@ yp_svc_run(void)
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static void
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unregister(void)
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{
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(void) pmap_unset(YPPROG, YPVERS);
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(void) pmap_unset(YPPROG, YPOLDVERS);
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(void)svc_unreg(YPPROG, YPVERS);
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(void)svc_unreg(YPPROG, YPOLDVERS);
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}
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static void
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@ -231,24 +250,222 @@ closedown(int sig)
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(void) alarm(_RPCSVC_CLOSEDOWN/2);
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}
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static int
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create_service(const int sock, const struct netconfig *nconf,
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const struct __rpc_sockinfo *si)
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{
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int error;
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SVCXPRT *transp;
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struct addrinfo hints, *res, *res0;
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struct socklistent *slep;
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struct bindaddrlistent *blep;
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struct netbuf svcaddr;
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SLIST_INIT(&sle_head);
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memset(&hints, 0, sizeof(hints));
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memset(&svcaddr, 0, sizeof(svcaddr));
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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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* Build socketlist from bindaddrlist.
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*/
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if (sock == RPC_ANYFD) {
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SLIST_FOREACH(blep, &ble_head, ble_next) {
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if (blep->ble_hostname == NULL)
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hints.ai_flags = AI_PASSIVE;
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else
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hints.ai_flags = 0;
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error = getaddrinfo(blep->ble_hostname, servname,
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&hints, &res0);
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if (error) {
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_msgout("getaddrinfo(): %s",
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gai_strerror(error));
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return -1;
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}
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for (res = res0; res; res = res->ai_next) {
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int s;
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s = __rpc_nconf2fd(nconf);
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if (s < 0) {
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if (errno == EPROTONOSUPPORT)
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_msgout("unsupported"
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" transport: %s",
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nconf->nc_netid);
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else
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_msgout("cannot create"
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" %s socket: %s",
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nconf->nc_netid,
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strerror(errno));
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freeaddrinfo(res0);
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return -1;
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}
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if (bind(s, res->ai_addr,
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res->ai_addrlen) == -1) {
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_msgout("cannot bind %s socket: %s",
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nconf->nc_netid, strerror(errno));
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freeaddrinfo(res0);
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close(sock);
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return -1;
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}
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if (nconf->nc_semantics != NC_TPI_CLTS)
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listen(s, SOMAXCONN);
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slep = malloc(sizeof(*slep));
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if (slep == NULL) {
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_msgout("malloc failed: %s",
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strerror(errno));
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freeaddrinfo(res0);
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close(s);
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return -1;
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}
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memset(slep, 0, sizeof(*slep));
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memcpy(&slep->sle_ss,
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(struct sockaddr *)(res->ai_addr),
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sizeof(res->ai_addr));
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slep->sle_sock = s;
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SLIST_INSERT_HEAD(&sle_head, slep, sle_next);
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/*
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* If servname == "0", redefine it by using
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* the bound socket.
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*/
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if (strncmp("0", servname, 1) == 0) {
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struct sockaddr *sap;
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socklen_t slen;
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char *sname;
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sname = malloc(NI_MAXSERV);
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if (sname == NULL) {
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_msgout("malloc(): %s",
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strerror(errno));
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freeaddrinfo(res0);
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close(s);
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return -1;
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}
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memset(sname, 0, NI_MAXSERV);
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sap = (struct sockaddr *)&slep->sle_ss;
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slen = sizeof(*sap);
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error = getsockname(s, sap, &slen);
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if (error) {
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_msgout("getsockname(): %s",
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strerror(errno));
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freeaddrinfo(res0);
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close(s);
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return -1;
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}
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error = getnameinfo(sap, slen,
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NULL, 0,
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sname, NI_MAXSERV,
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NI_NUMERICHOST | NI_NUMERICSERV);
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if (error) {
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_msgout("getnameinfo(): %s",
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strerror(errno));
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freeaddrinfo(res0);
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close(s);
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return -1;
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}
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servname = sname;
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}
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}
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freeaddrinfo(res0);
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}
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} else {
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slep = malloc(sizeof(*slep));
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if (slep == NULL) {
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_msgout("malloc failed: %s", strerror(errno));
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return -1;
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}
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memset(slep, 0, sizeof(*slep));
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slep->sle_sock = sock;
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SLIST_INSERT_HEAD(&sle_head, slep, sle_next);
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}
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/*
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* Traverse socketlist and create rpc service handles for each socket.
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*/
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SLIST_FOREACH(slep, &sle_head, sle_next) {
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if (nconf->nc_semantics == NC_TPI_CLTS)
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transp = svc_dg_create(slep->sle_sock, 0, 0);
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else
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transp = svc_vc_create(slep->sle_sock, RPC_MAXDATASIZE,
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RPC_MAXDATASIZE);
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if (transp == NULL) {
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_msgout("unable to create service: %s",
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nconf->nc_netid);
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continue;
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}
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if (!svc_reg(transp, YPPROG, YPOLDVERS, ypprog_1, NULL)) {
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svc_destroy(transp);
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close(slep->sle_sock);
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_msgout("unable to register (YPPROG, YPOLDVERS, %s):"
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" %s", nconf->nc_netid, strerror(errno));
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continue;
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}
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if (!svc_reg(transp, YPPROG, YPVERS, ypprog_2, NULL)) {
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svc_destroy(transp);
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close(slep->sle_sock);
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_msgout("unable to register (YPPROG, YPVERS, %s): %s",
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nconf->nc_netid, strerror(errno));
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continue;
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}
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}
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while(!(SLIST_EMPTY(&sle_head)))
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SLIST_REMOVE_HEAD(&sle_head, sle_next);
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/*
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* Register RPC service to rpcbind by using AI_PASSIVE address.
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*/
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hints.ai_flags = AI_PASSIVE;
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error = getaddrinfo(NULL, servname, &hints, &res0);
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if (error) {
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_msgout("getaddrinfo(): %s", gai_strerror(error));
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return -1;
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}
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svcaddr.buf = res0->ai_addr;
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svcaddr.len = res0->ai_addrlen;
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if (si->si_af == AF_INET) {
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/* XXX: ignore error intentionally */
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rpcb_set(YPPROG, YPOLDVERS, nconf, &svcaddr);
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}
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/* XXX: ignore error intentionally */
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rpcb_set(YPPROG, YPVERS, nconf, &svcaddr);
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freeaddrinfo(res0);
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return 0;
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}
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int
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main(int argc, char *argv[])
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{
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register SVCXPRT *transp = NULL;
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int sock;
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int proto = 0;
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struct sockaddr_in saddr;
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socklen_t asize = sizeof (saddr);
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int ch;
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in_port_t yp_port = 0;
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char *errstr;
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struct socktype *st;
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int error;
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|
||||
void *nc_handle;
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||||
struct netconfig *nconf;
|
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struct __rpc_sockinfo si;
|
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struct bindaddrlistent *blep;
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|
||||
while ((ch = getopt(argc, argv, "hdnp:P:")) != -1) {
|
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memset(&si, 0, sizeof(si));
|
||||
SLIST_INIT(&ble_head);
|
||||
|
||||
while ((ch = getopt(argc, argv, "dh:np:P:")) != -1) {
|
||||
switch (ch) {
|
||||
case 'd':
|
||||
debug = ypdb_debug = 1;
|
||||
break;
|
||||
case 'h':
|
||||
blep = malloc(sizeof(*blep));
|
||||
if (blep == NULL)
|
||||
err(1, "malloc() failed: -h %s", optarg);
|
||||
blep->ble_hostname = optarg;
|
||||
SLIST_INSERT_HEAD(&ble_head, blep, ble_next);
|
||||
break;
|
||||
case 'n':
|
||||
do_dns = 1;
|
||||
break;
|
||||
@ -256,121 +473,79 @@ main(int argc, char *argv[])
|
||||
yp_dir = optarg;
|
||||
break;
|
||||
case 'P':
|
||||
yp_port = (in_port_t)strtonum(optarg, 1, 65535,
|
||||
(const char **)&errstr);
|
||||
if (yp_port == 0 && errstr != NULL) {
|
||||
_msgout("invalid port number provided");
|
||||
exit(1);
|
||||
}
|
||||
servname = optarg;
|
||||
break;
|
||||
case 'h':
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
}
|
||||
/*
|
||||
* Add "anyaddr" entry if no -h is specified.
|
||||
*/
|
||||
if (SLIST_EMPTY(&ble_head)) {
|
||||
blep = malloc(sizeof(*blep));
|
||||
if (blep == NULL)
|
||||
err(1, "malloc() failed");
|
||||
memset(blep, 0, sizeof(*blep));
|
||||
SLIST_INSERT_HEAD(&ble_head, blep, ble_next);
|
||||
}
|
||||
|
||||
load_securenets();
|
||||
yp_init_resolver();
|
||||
#ifdef DB_CACHE
|
||||
yp_init_dbs();
|
||||
#endif
|
||||
if (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {
|
||||
int ssize = sizeof (int);
|
||||
|
||||
if (saddr.sin_family != AF_INET)
|
||||
exit(1);
|
||||
if (getsockopt(0, SOL_SOCKET, SO_TYPE,
|
||||
(char *)&_rpcfdtype, &ssize) == -1)
|
||||
exit(1);
|
||||
sock = 0;
|
||||
nc_handle = setnetconfig();
|
||||
if (nc_handle == NULL)
|
||||
err(1, "cannot read %s", NETCONFIG);
|
||||
if (__rpc_fd2sockinfo(0, &si) != 0) {
|
||||
/* invoked from inetd */
|
||||
_rpcpmstart = 1;
|
||||
proto = 0;
|
||||
_rpcfdtype = si.si_socktype;
|
||||
_rpcaf = si.si_af;
|
||||
_rpcfd = 0;
|
||||
openlog("ypserv", LOG_PID, LOG_DAEMON);
|
||||
} else {
|
||||
/* standalone mode */
|
||||
if (!debug) {
|
||||
if (daemon(0,0)) {
|
||||
err(1,"cannot fork");
|
||||
}
|
||||
openlog("ypserv", LOG_PID, LOG_DAEMON);
|
||||
}
|
||||
sock = RPC_ANYSOCK;
|
||||
(void) pmap_unset(YPPROG, YPVERS);
|
||||
(void) pmap_unset(YPPROG, YPOLDVERS);
|
||||
_rpcpmstart = 0;
|
||||
_rpcaf = AF_INET;
|
||||
_rpcfd = RPC_ANYFD;
|
||||
unregister();
|
||||
}
|
||||
|
||||
/*
|
||||
* Initialize TCP/UDP sockets.
|
||||
* Create RPC service for each transport.
|
||||
*/
|
||||
memset((char *)&saddr, 0, sizeof(saddr));
|
||||
saddr.sin_family = AF_INET;
|
||||
saddr.sin_addr.s_addr = htonl(INADDR_ANY);
|
||||
saddr.sin_port = htons(yp_port);
|
||||
for (st = stlist; st->st_name != NULL; st++) {
|
||||
/* Do not bind the socket if the user didn't specify a port */
|
||||
if (yp_port == 0)
|
||||
break;
|
||||
|
||||
sock = socket(AF_INET, st->st_type, 0);
|
||||
if (sock == -1) {
|
||||
if ((asprintf(&errstr, "cannot create a %s socket",
|
||||
st->st_name)) == -1)
|
||||
err(1, "unexpected failure in asprintf()");
|
||||
_msgout(errstr);
|
||||
free((void *)errstr);
|
||||
exit(1);
|
||||
}
|
||||
if (bind(sock, (struct sockaddr *) &saddr, sizeof(saddr))
|
||||
== -1) {
|
||||
if ((asprintf(&errstr, "cannot bind %s socket",
|
||||
st->st_name)) == -1)
|
||||
err(1, "unexpected failure in asprintf()");
|
||||
_msgout(errstr);
|
||||
free((void *)errstr);
|
||||
exit(1);
|
||||
}
|
||||
errstr = NULL;
|
||||
}
|
||||
|
||||
if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_DGRAM)) {
|
||||
transp = svcudp_create(sock);
|
||||
if (transp == NULL) {
|
||||
_msgout("cannot create udp service");
|
||||
exit(1);
|
||||
}
|
||||
if (!_rpcpmstart)
|
||||
proto = IPPROTO_UDP;
|
||||
if (!svc_register(transp, YPPROG, YPOLDVERS, ypprog_1, proto)) {
|
||||
_msgout("unable to register (YPPROG, YPOLDVERS, udp)");
|
||||
exit(1);
|
||||
}
|
||||
if (!svc_register(transp, YPPROG, YPVERS, ypprog_2, proto)) {
|
||||
_msgout("unable to register (YPPROG, YPVERS, udp)");
|
||||
exit(1);
|
||||
while((nconf = getnetconfig(nc_handle))) {
|
||||
if ((nconf->nc_flag & NC_VISIBLE)) {
|
||||
if (__rpc_nconf2sockinfo(nconf, &si) == 0) {
|
||||
_msgout("cannot get information for %s",
|
||||
nconf->nc_netid);
|
||||
exit(1);
|
||||
}
|
||||
if (_rpcpmstart) {
|
||||
if (si.si_socktype != _rpcfdtype ||
|
||||
si.si_af != _rpcaf)
|
||||
continue;
|
||||
} else if (si.si_af != _rpcaf)
|
||||
continue;
|
||||
error = create_service(_rpcfd, nconf, &si);
|
||||
if (error) {
|
||||
endnetconfig(nc_handle);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
}
|
||||
endnetconfig(nc_handle);
|
||||
while(!(SLIST_EMPTY(&ble_head)))
|
||||
SLIST_REMOVE_HEAD(&ble_head, ble_next);
|
||||
|
||||
if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_STREAM)) {
|
||||
transp = svctcp_create(sock, 0, 0);
|
||||
if (transp == NULL) {
|
||||
_msgout("cannot create tcp service");
|
||||
exit(1);
|
||||
}
|
||||
if (!_rpcpmstart)
|
||||
proto = IPPROTO_TCP;
|
||||
if (!svc_register(transp, YPPROG, YPOLDVERS, ypprog_1, proto)) {
|
||||
_msgout("unable to register (YPPROG, YPOLDVERS, tcp)");
|
||||
exit(1);
|
||||
}
|
||||
if (!svc_register(transp, YPPROG, YPVERS, ypprog_2, proto)) {
|
||||
_msgout("unable to register (YPPROG, YPVERS, tcp)");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
if (transp == (SVCXPRT *)NULL) {
|
||||
_msgout("could not create a handle");
|
||||
exit(1);
|
||||
}
|
||||
if (_rpcpmstart) {
|
||||
(void) signal(SIGALRM, (SIG_PF) closedown);
|
||||
(void) alarm(_RPCSVC_CLOSEDOWN/2);
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
.\"
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd June 25, 2009
|
||||
.Dd December 13, 2009
|
||||
.Dt YPSERV 8
|
||||
.Os
|
||||
.Sh NAME
|
||||
@ -408,6 +408,15 @@ in subprocesses, allowing the parent server process to go on handling
|
||||
other requests.)
|
||||
This makes it easier to trace the server with
|
||||
a debugging tool.
|
||||
.It Fl h Ar addr
|
||||
Specify a specific address to bind to for requests. This option may be
|
||||
specified multiple times. If no
|
||||
.Fl h
|
||||
option is specified,
|
||||
.Nm
|
||||
will bind to default passive address
|
||||
.Pq e.g. INADDR_ANY for IPv4
|
||||
for each transport.
|
||||
.It Fl P Ar port
|
||||
Force ypserv to bind to a specific TCP/UDP port, rather than selecting
|
||||
its own.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user