| /* |
| * Copyright (c) 2009, Sun Microsystems, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * - Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * - Neither the name of Sun Microsystems, Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /* |
| * Copyright (c) 1986-1991 by Sun Microsystems Inc. |
| * In addition, portions of such source code were derived from Berkeley |
| * 4.3 BSD under license from the Regents of the University of |
| * California. |
| */ |
| |
| #ifdef PORTMAP |
| /* |
| * rpc_soc.c |
| * |
| * The backward compatibility routines for the earlier implementation |
| * of RPC, where the only transports supported were tcp/ip and udp/ip. |
| * Based on berkeley socket abstraction, now implemented on the top |
| * of TLI/Streams |
| */ |
| #include <config.h> |
| #include <pthread.h> |
| #include <reentrant.h> |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <stdio.h> |
| #include <rpc/rpc.h> |
| #include <rpc/pmap_clnt.h> |
| #include <rpc/pmap_prot.h> |
| #include <rpc/nettype.h> |
| #include <syslog.h> |
| #include <netinet/in.h> |
| #include <netdb.h> |
| #include <errno.h> |
| #include <syslog.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| |
| #include "rpc_com.h" |
| |
| extern mutex_t rpcsoc_lock; |
| |
| static CLIENT *clnt_com_ncreate(struct sockaddr_in *, rpcprog_t, rpcvers_t, |
| int *, u_int, u_int, char *, int); |
| static SVCXPRT *svc_com_ncreate(int, u_int, u_int, char *); |
| static bool rpc_wrap_bcast(char *, struct netbuf *, struct netconfig *); |
| |
| /* XXX */ |
| #define IN4_LOCALHOST_STRING "127.0.0.1" |
| #define IN6_LOCALHOST_STRING "::1" |
| |
| /* XXX */ |
| #ifndef SOCK_CLOEXEC |
| #define SOCK_CLOEXEC 02000000 |
| #endif |
| |
| /* |
| * A common clnt create routine |
| */ |
| static CLIENT * |
| clnt_com_ncreate(struct sockaddr_in *raddr, rpcprog_t prog, |
| rpcvers_t vers, int *sockp, u_int sendsz, |
| u_int recvsz, char *tp, int flags) |
| { |
| CLIENT *cl; |
| int madefd = FALSE; |
| int fd = *sockp; |
| struct netconfig *nconf; |
| struct netbuf bindaddr; |
| |
| mutex_lock(&rpcsoc_lock); |
| nconf = __rpc_getconfip(tp); |
| if (!nconf) { |
| rpc_createerr.cf_stat = RPC_UNKNOWNPROTO; |
| mutex_unlock(&rpcsoc_lock); |
| return (NULL); |
| } |
| if (fd == RPC_ANYSOCK) { |
| static int have_cloexec; |
| fd = __rpc_nconf2fd_flags(nconf, flags); |
| if (fd == -1) { |
| if ((flags & SOCK_CLOEXEC) && have_cloexec <= 0) { |
| fd = __rpc_nconf2fd(nconf); |
| if (fd == -1) |
| goto syserror; |
| if (flags & SOCK_CLOEXEC) { |
| have_cloexec = -1; |
| (void) fcntl(fd, F_SETFD, FD_CLOEXEC); |
| } |
| } else |
| goto syserror; |
| } else if (flags & SOCK_CLOEXEC) |
| have_cloexec = 1; |
| madefd = TRUE; |
| } |
| |
| if (raddr->sin_port == 0) { |
| u_int proto; |
| u_short sport; |
| |
| mutex_unlock(&rpcsoc_lock); /* pmap_getport is recursive */ |
| proto = strcmp(tp, "udp") == 0 ? IPPROTO_UDP : IPPROTO_TCP; |
| sport = |
| pmap_getport(raddr, (u_long) prog, (u_long) vers, proto); |
| if (sport == 0) |
| goto err; |
| raddr->sin_port = htons(sport); |
| mutex_lock(&rpcsoc_lock); /* pmap_getport is recursive */ |
| } |
| |
| /* Transform sockaddr_in to netbuf */ |
| bindaddr.maxlen = bindaddr.len = sizeof(struct sockaddr_in); |
| bindaddr.buf = raddr; |
| |
| bindresvport(fd, NULL); |
| cl = clnt_tli_ncreate(fd, nconf, &bindaddr, prog, vers, sendsz, recvsz); |
| if (cl) { |
| if (madefd == TRUE) { |
| /* |
| * The fd should be closed while destroying the handle. |
| */ |
| (void)CLNT_CONTROL(cl, CLSET_FD_CLOSE, NULL); |
| *sockp = fd; |
| } |
| (void)freenetconfigent(nconf); |
| mutex_unlock(&rpcsoc_lock); |
| return (cl); |
| } |
| goto err; |
| |
| syserror: |
| rpc_createerr.cf_stat = RPC_SYSTEMERROR; |
| rpc_createerr.cf_error.re_errno = errno; |
| |
| err: if (madefd == TRUE) |
| (void)close(fd); |
| (void)freenetconfigent(nconf); |
| mutex_unlock(&rpcsoc_lock); |
| return (NULL); |
| } |
| |
| /* XXX suspicious */ |
| CLIENT * |
| __libc_clntudp_nbufcreate(struct sockaddr_in *raddr, u_long prog, |
| u_long vers, struct timeval wait, int *sockp, |
| u_int sendsz, u_int recvsz, int flags) |
| { |
| CLIENT *cl; |
| |
| cl = clnt_com_ncreate(raddr, (rpcprog_t) prog, (rpcvers_t) vers, sockp, |
| sendsz, recvsz, "udp", flags); |
| if (cl == NULL) |
| return (NULL); |
| (void)CLNT_CONTROL(cl, CLSET_RETRY_TIMEOUT, &wait); |
| return (cl); |
| } |
| |
| CLIENT * |
| clntudp_nbufcreate(struct sockaddr_in *raddr, u_long prog, u_long vers, |
| struct timeval wait, int *sockp, u_int sendsz, |
| u_int recvsz) |
| { |
| CLIENT *cl; |
| |
| cl = clnt_com_ncreate(raddr, (rpcprog_t) prog, (rpcvers_t) vers, sockp, |
| sendsz, recvsz, "udp", 0); |
| if (cl == NULL) |
| return (NULL); |
| (void)CLNT_CONTROL(cl, CLSET_RETRY_TIMEOUT, &wait); |
| return (cl); |
| } |
| |
| CLIENT * |
| clntudp_create(struct sockaddr_in *raddr, u_long program, |
| u_long version, struct timeval wait, int *sockp) |
| { |
| return clntudp_nbufcreate(raddr, program, version, wait, sockp, |
| UDPMSGSIZE, UDPMSGSIZE); |
| } |
| |
| CLIENT * |
| clnttcp_create(struct sockaddr_in *raddr, u_long prog, u_long vers, |
| int *sockp, u_int sendsz, u_int recvsz) |
| { |
| return clnt_com_ncreate(raddr, (rpcprog_t) prog, (rpcvers_t) vers, |
| sockp, sendsz, recvsz, "tcp", 0); |
| } |
| |
| /* IPv6 version of clnt*_*create */ |
| |
| #ifdef INET6_NOT_USED |
| |
| CLIENT * |
| clntudp6_nbufcreate(struct sockaddr_in6 *raddr, u_long prog, |
| u_long vers, struct timeval wait, int *sockp, |
| u_int sendsz, u_int recvsz) |
| { |
| CLIENT *cl; |
| |
| cl = clnt_com_ncreate(raddr, (rpcprog_t) prog, (rpcvers_t) vers, sockp, |
| sendsz, recvsz, "udp6", 0); |
| if (cl == NULL) |
| return (NULL); |
| (void)CLNT_CONTROL(cl, CLSET_RETRY_TIMEOUT, &wait); |
| return (cl); |
| } |
| |
| CLIENT * |
| clntudp6_ncreate(struct sockaddr_in6 *raddr, u_long program, |
| u_long version, struct timeval wait, int *sockp) |
| { |
| return clntudp6_nbufcreate(raddr, program, version, wait, sockp, |
| UDPMSGSIZE, UDPMSGSIZE); |
| } |
| |
| CLIENT * |
| clnttcp6_ncreate(struct sockaddr_in6 *raddr, u_long prog, u_long vers, |
| int *sockp, u_int sendsz, u_int recvsz) |
| { |
| return clnt_com_ncreate(raddr, (rpcprog_t) prog, (rpcvers_t) vers, |
| sockp, sendsz, recvsz, "tcp6", 0); |
| } |
| |
| #endif |
| |
| CLIENT * |
| clntraw_create(u_long prog, u_long vers) |
| { |
| return clnt_raw_create((rpcprog_t) prog, (rpcvers_t) vers); |
| } |
| |
| /* |
| * A common server create routine |
| */ |
| static SVCXPRT * |
| svc_com_ncreate(int fd, u_int sendsize, u_int recvsize, char *netid) |
| { |
| struct netconfig *nconf; |
| SVCXPRT *svc; |
| int madefd = FALSE; |
| int port; |
| struct sockaddr_in sin; |
| |
| nconf = __rpc_getconfip(netid); |
| if (!nconf) { |
| (void)syslog(LOG_ERR, "Could not get %s transport", netid); |
| return (NULL); |
| } |
| if (fd == RPC_ANYSOCK) { |
| fd = __rpc_nconf2fd(nconf); |
| if (fd == -1) { |
| (void)freenetconfigent(nconf); |
| (void)syslog(LOG_ERR, |
| "svc%s_create: could not open connection", |
| netid); |
| return (NULL); |
| } |
| madefd = TRUE; |
| } |
| |
| memset(&sin, 0, sizeof(sin)); |
| sin.sin_family = AF_INET; |
| bindresvport(fd, &sin); |
| listen(fd, SOMAXCONN); |
| svc = svc_tli_ncreate(fd, nconf, NULL, sendsize, recvsize); |
| (void)freenetconfigent(nconf); |
| if (svc == NULL) { |
| if (madefd) |
| (void)close(fd); |
| return (NULL); |
| } |
| port = (((struct sockaddr_in *)&svc->xp_local.ss)->sin_port); |
| svc->xp_port = ntohs(port); |
| |
| return (svc); |
| } |
| |
| SVCXPRT * |
| svctcp_create(int fd, u_int sendsize, u_int recvsize) |
| { |
| return svc_com_ncreate(fd, sendsize, recvsize, "tcp"); |
| } |
| |
| SVCXPRT * |
| svcudp_bufcreate(int fd, u_int sendsz, u_int recvsz) |
| { |
| return svc_com_ncreate(fd, sendsz, recvsz, "udp"); |
| } |
| |
| SVCXPRT * |
| svcfd_create(int fd, u_int sendsize, u_int recvsize) |
| { |
| |
| return svc_fd_ncreate(fd, sendsize, recvsize); |
| } |
| |
| SVCXPRT * |
| svcudp_create(int fd) |
| { |
| return svc_com_ncreate(fd, UDPMSGSIZE, UDPMSGSIZE, "udp"); |
| } |
| |
| SVCXPRT * |
| svcraw_create() |
| { |
| return svc_raw_ncreate(); |
| } |
| |
| /* IPV6 version */ |
| #ifdef INET6_NOT_USED |
| SVCXPRT *svcudp6_nbufcreate(int fd, u_int sendsz, u_int recvsz) |
| { |
| return svc_com_ncreate(fd, sendsz, recvsz, "udp6"); |
| } |
| |
| SVCXPRT * |
| svctcp6_ncreate(int fd, u_int sendsize, u_int recvsize) |
| { |
| return svc_com_ncreate(fd, sendsize, recvsize, "tcp6"); |
| } |
| |
| SVCXPRT * |
| svcudp6_ncreate(int fd) |
| { |
| return svc_com_ncreate(fd, UDPMSGSIZE, UDPMSGSIZE, "udp6"); |
| } |
| #endif |
| |
| int |
| get_myaddress(struct sockaddr_in *addr) |
| { |
| |
| memset((void *)addr, 0, sizeof(*addr)); |
| addr->sin_family = AF_INET; |
| addr->sin_port = htons(PMAPPORT); |
| addr->sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
| return (0); |
| } |
| |
| /* |
| * For connectionless "udp" transport. Obsoleted by rpc_call(). |
| */ |
| int |
| callrpc(const char *host, int prognum, int versnum, int procnum, |
| xdrproc_t inproc, void *in, xdrproc_t outproc, void *out) |
| { |
| |
| return (int)rpc_call(host, (rpcprog_t) prognum, (rpcvers_t) versnum, |
| (rpcproc_t) procnum, inproc, in, outproc, out, |
| "udp"); |
| } |
| |
| /* |
| * For connectionless kind of transport. Obsoleted by rpc_reg() |
| */ |
| int |
| registerrpc(int prognum, int versnum, int procnum, |
| char *(*progname) (char[UDPMSGSIZE]), xdrproc_t inproc, |
| xdrproc_t outproc) |
| { |
| |
| return rpc_reg((rpcprog_t) prognum, (rpcvers_t) versnum, |
| (rpcproc_t) procnum, progname, inproc, outproc, "udp"); |
| } |
| |
| /* |
| * All the following clnt_broadcast stuff is convulated; it supports |
| * the earlier calling style of the callback function |
| */ |
| extern thread_key_t clnt_broadcast_key; |
| |
| /* |
| * Need to translate the netbuf address into sockaddr_in address. |
| * Dont care about netid here. |
| */ |
| /* ARGSUSED */ |
| static bool |
| rpc_wrap_bcast(char *resultp, /* results of the call */ |
| struct netbuf *addr, /* address of the guy who responded */ |
| struct netconfig *nconf |
| /* Netconf of the transport */) |
| { |
| resultproc_t clnt_broadcast_result; |
| |
| if (strcmp(nconf->nc_netid, "udp")) |
| return (FALSE); |
| clnt_broadcast_result = |
| (resultproc_t) thr_getspecific(clnt_broadcast_key); |
| return (*clnt_broadcast_result) (resultp, |
| (struct sockaddr_in *)addr->buf); |
| } |
| |
| /* |
| * Broadcasts on UDP transport. Obsoleted by rpc_broadcast(). |
| */ |
| enum clnt_stat |
| clnt_broadcast(u_long prog, /* program number */ |
| u_long vers, /* version number */ |
| u_long proc, /* procedure number */ |
| xdrproc_t xargs, /* xdr routine for args */ |
| void *argsp, /* pointer to args */ |
| xdrproc_t xresults, /* xdr routine for results */ |
| void *resultsp, /* pointer to results */ |
| resultproc_t eachresult |
| /* call with each result obtained */) |
| { |
| extern mutex_t tsd_lock; |
| |
| if (clnt_broadcast_key == -1) { |
| mutex_lock(&tsd_lock); |
| if (clnt_broadcast_key == -1) |
| thr_keycreate(&clnt_broadcast_key, thr_keyfree); |
| mutex_unlock(&tsd_lock); |
| } |
| thr_setspecific(clnt_broadcast_key, (void *)eachresult); |
| return rpc_broadcast((rpcprog_t) prog, (rpcvers_t) vers, |
| (rpcproc_t) proc, xargs, argsp, xresults, resultsp, |
| (resultproc_t) rpc_wrap_bcast, "udp"); |
| } |
| |
| #if !defined(__APPLE__) |
| #if USE_DES |
| |
| /* |
| * Create the client des authentication object. Obsoleted by |
| * authdes_seccreate(). |
| */ |
| AUTH * |
| authdes_ncreate(char *servername, /* network name of server */ |
| u_int window, /* time to live */ |
| struct sockaddr *syncaddr, /* optional hostaddr to sync with */ |
| des_block *ckey /* optional conversation key to use */) |
| { |
| AUTH *dummy; |
| AUTH *nauth; |
| char hostname[NI_MAXHOST]; |
| |
| if (syncaddr) { |
| /* |
| * Change addr to hostname, because that is the way |
| * new interface takes it. |
| */ |
| if (getnameinfo |
| (syncaddr, sizeof(syncaddr), hostname, sizeof(hostname), |
| NULL, 0, 0) != 0) |
| goto fallback; |
| |
| nauth = authdes_nseccreate(servername, window, hostname, ckey); |
| return (nauth); |
| } |
| fallback: |
| dummy = authdes_nseccreate(servername, window, NULL, ckey); |
| |
| return (dummy); |
| } |
| |
| #endif /* USE_DES */ |
| #endif /* !APPLE */ |
| |
| /* |
| * Create a client handle for a unix connection. Obsoleted by clnt_vc_create() |
| */ |
| CLIENT * |
| clntunix_ncreate(struct sockaddr_un *raddr, u_long prog, u_long vers, |
| int *sockp, u_int sendsz, u_int recvsz) |
| { |
| struct netbuf svcaddr; |
| CLIENT *cl = NULL; |
| int len; |
| |
| if (*sockp < 0) { |
| *sockp = socket(AF_LOCAL, SOCK_STREAM, 0); |
| len = SUN_LEN(raddr); |
| if ((*sockp < 0) |
| || (connect(*sockp, (struct sockaddr *)raddr, len) < 0)) { |
| rpc_createerr.cf_stat = RPC_SYSTEMERROR; |
| rpc_createerr.cf_error.re_errno = errno; |
| if (*sockp != -1) |
| (void)close(*sockp); |
| goto done; |
| } |
| } |
| svcaddr.buf = raddr; |
| svcaddr.len = sizeof(*raddr); |
| svcaddr.maxlen = sizeof(struct sockaddr_un); |
| cl = clnt_vc_ncreate(*sockp, &svcaddr, prog, vers, sendsz, recvsz); |
| done: |
| return (cl); |
| } |
| |
| /* |
| * Creates, registers, and returns a (rpc) unix based transporter. |
| * Obsoleted by svc_vc_create(). |
| */ |
| SVCXPRT * |
| svcunix_ncreate(int sock, u_int sendsize, u_int recvsize, char *path) |
| { |
| struct netconfig *nconf; |
| void *localhandle; |
| struct sockaddr_un sun; |
| struct sockaddr *sa; |
| struct t_bind taddr; |
| SVCXPRT *xprt; |
| int addrlen; |
| |
| xprt = (SVCXPRT *) NULL; |
| localhandle = setnetconfig(); |
| while ((nconf = getnetconfig(localhandle)) != NULL) { |
| if (nconf->nc_protofmly != NULL |
| && strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0) |
| break; |
| } |
| if (nconf == NULL) |
| goto done; |
| |
| sock = __rpc_nconf2fd(nconf); |
| if (sock < 0) |
| goto done; |
| |
| memset(&sun, 0, sizeof(sun)); |
| sun.sun_family = AF_LOCAL; |
| strncpy(sun.sun_path, path, sizeof(sun.sun_path)); |
| sun.sun_path[sizeof(sun.sun_path)-1] = '\0'; |
| addrlen = sizeof(struct sockaddr_un); |
| sa = (struct sockaddr *)&sun; |
| |
| if (bind(sock, sa, addrlen) < 0) |
| goto done; |
| |
| taddr.addr.len = taddr.addr.maxlen = addrlen; |
| taddr.addr.buf = mem_alloc(addrlen); |
| memcpy(taddr.addr.buf, sa, addrlen); |
| |
| if (nconf->nc_semantics != NC_TPI_CLTS) { |
| if (listen(sock, SOMAXCONN) < 0) { |
| mem_free(taddr.addr.buf, addrlen); |
| goto done; |
| } |
| } |
| |
| xprt = |
| (SVCXPRT *) svc_tli_ncreate(sock, nconf, &taddr, sendsize, |
| recvsize); |
| |
| done: |
| endnetconfig(localhandle); |
| if (! xprt) |
| close(sock); |
| return (xprt); |
| } |
| |
| /* |
| * Like svunix_create(), except the routine takes any *open* UNIX file |
| * descriptor as its first input. Obsoleted by svc_fd_create(); |
| */ |
| SVCXPRT * |
| svcunixfd_ncreate(int fd, u_int sendsize, u_int recvsize) |
| { |
| return (svc_fd_create(fd, sendsize, recvsize)); |
| } |
| |
| #endif /* PORTMAP */ |