diff options
Diffstat (limited to 'sunrpc/portmap.c')
| -rw-r--r-- | sunrpc/portmap.c | 480 |
1 files changed, 0 insertions, 480 deletions
diff --git a/sunrpc/portmap.c b/sunrpc/portmap.c deleted file mode 100644 index bbe9dbb246..0000000000 --- a/sunrpc/portmap.c +++ /dev/null @@ -1,480 +0,0 @@ -/* @(#)portmap.c 2.3 88/08/11 4.0 RPCSRC */ -#ifndef lint -static char sccsid[] = "@(#)portmap.c 1.32 87/08/06 Copyr 1984 Sun Micro"; -#endif - -/* - * Copyright (c) 1984 by Sun Microsystems, Inc. - */ - -/* - * portmap.c, Implements the program,version to port number mapping for - * rpc. - */ - -/* - * Sun RPC is a product of Sun Microsystems, Inc. and is provided for - * unrestricted use provided that this legend is included on all tape - * media and as a part of the software program in whole or part. Users - * may copy or modify Sun RPC without charge, but are not authorized - * to license or distribute it to anyone else except as part of a product or - * program developed by the user. - * - * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE - * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR - * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. - * - * Sun RPC is provided with no support and without any obligation on the - * part of Sun Microsystems, Inc. to assist in its use, correction, - * modification or enhancement. - * - * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE - * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC - * OR ANY PART THEREOF. - * - * In no event will Sun Microsystems, Inc. be liable for any lost revenue - * or profits or other special, indirect and consequential damages, even if - * Sun has been advised of the possibility of such damages. - * - * Sun Microsystems, Inc. - * 2550 Garcia Avenue - * Mountain View, California 94043 - */ - -#include <rpc/rpc.h> -#include <rpc/pmap_prot.h> -#include <stdio.h> -#include <netdb.h> -#include <sys/socket.h> -#include <sys/ioctl.h> -#include <sys/wait.h> -#include <sys/signal.h> - -int reg_service(); -void reap(); -struct pmaplist *pmaplist; -static int debugging = 0; - -main() -{ - SVCXPRT *xprt; - int sock, pid, t; - struct sockaddr_in addr; - int len = sizeof(struct sockaddr_in); - register struct pmaplist *pml; - -#ifndef DEBUG - pid = fork(); - if (pid < 0) { - perror("portmap: fork"); - exit(1); - } - if (pid != 0) - exit(0); - for (t = 0; t < 20; t++) - close(t); - open("/", 0); - dup2(0, 1); - dup2(0, 2); - t = open("/dev/tty", 2); - if (t >= 0) { - ioctl(t, TIOCNOTTY, (char *)0); - close(t); - } -#endif - if ((sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) { - perror(_("portmap cannot create socket")); - exit(1); - } - - addr.sin_addr.s_addr = 0; - addr.sin_family = AF_INET; - addr.sin_port = htons(PMAPPORT); - if (bind(sock, (struct sockaddr *)&addr, len) != 0) { - perror(_("portmap cannot bind")); - exit(1); - } - - if ((xprt = svcudp_create(sock)) == (SVCXPRT *)NULL) { - fprintf(stderr, _("couldn't do udp_create\n")); - exit(1); - } - /* make an entry for ourself */ - pml = (struct pmaplist *)malloc((u_int)sizeof(struct pmaplist)); - pml->pml_next = 0; - pml->pml_map.pm_prog = PMAPPROG; - pml->pml_map.pm_vers = PMAPVERS; - pml->pml_map.pm_prot = IPPROTO_UDP; - pml->pml_map.pm_port = PMAPPORT; - pmaplist = pml; - - if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) { - perror(_("portmap cannot create socket")); - exit(1); - } - if (bind(sock, (struct sockaddr *)&addr, len) != 0) { - perror(_("portmap cannot bind")); - exit(1); - } - if ((xprt = svctcp_create(sock, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE)) - == (SVCXPRT *)NULL) { - fprintf(stderr, _("couldn't do tcp_create\n")); - exit(1); - } - /* make an entry for ourself */ - pml = (struct pmaplist *)malloc((u_int)sizeof(struct pmaplist)); - pml->pml_map.pm_prog = PMAPPROG; - pml->pml_map.pm_vers = PMAPVERS; - pml->pml_map.pm_prot = IPPROTO_TCP; - pml->pml_map.pm_port = PMAPPORT; - pml->pml_next = pmaplist; - pmaplist = pml; - - (void)svc_register(xprt, PMAPPROG, PMAPVERS, reg_service, FALSE); - - (void)signal(SIGCHLD, reap); - svc_run(); - fprintf(stderr, _("run_svc returned unexpectedly\n")); - abort(); -} - -static struct pmaplist * -find_service(prog, vers, prot) - u_long prog; - u_long vers; -{ - register struct pmaplist *hit = NULL; - register struct pmaplist *pml; - - for (pml = pmaplist; pml != NULL; pml = pml->pml_next) { - if ((pml->pml_map.pm_prog != prog) || - (pml->pml_map.pm_prot != prot)) - continue; - hit = pml; - if (pml->pml_map.pm_vers == vers) - break; - } - return (hit); -} - -/* - * 1 OK, 0 not - */ -reg_service(rqstp, xprt) - struct svc_req *rqstp; - SVCXPRT *xprt; -{ - struct pmap reg; - struct pmaplist *pml, *prevpml, *fnd; - long ans, port; - caddr_t t; - -#ifdef DEBUG - fprintf(stderr, "server: about do a switch\n"); -#endif - switch (rqstp->rq_proc) { - - case PMAPPROC_NULL: - /* - * Null proc call - */ - if ((!svc_sendreply(xprt, xdr_void, NULL)) && debugging) { - abort(); - } - break; - - case PMAPPROC_SET: - /* - * Set a program,version to port mapping - */ - if (!svc_getargs(xprt, xdr_pmap, ®)) - svcerr_decode(xprt); - else { - /* - * check to see if already used - * find_service returns a hit even if - * the versions don't match, so check for it - */ - fnd = find_service(reg.pm_prog, reg.pm_vers, reg.pm_prot); - if (fnd && fnd->pml_map.pm_vers == reg.pm_vers) { - if (fnd->pml_map.pm_port == reg.pm_port) { - ans = 1; - goto done; - } - else { - ans = 0; - goto done; - } - } else { - /* - * add to END of list - */ - pml = (struct pmaplist *) - malloc((u_int)sizeof(struct pmaplist)); - pml->pml_map = reg; - pml->pml_next = 0; - if (pmaplist == 0) { - pmaplist = pml; - } else { - for (fnd= pmaplist; fnd->pml_next != 0; - fnd = fnd->pml_next); - fnd->pml_next = pml; - } - ans = 1; - } - done: - if ((!svc_sendreply(xprt, xdr_long, (caddr_t)&ans)) && - debugging) { - fprintf(stderr, "svc_sendreply\n"); - abort(); - } - } - break; - - case PMAPPROC_UNSET: - /* - * Remove a program,version to port mapping. - */ - if (!svc_getargs(xprt, xdr_pmap, ®)) - svcerr_decode(xprt); - else { - ans = 0; - for (prevpml = NULL, pml = pmaplist; pml != NULL; ) { - if ((pml->pml_map.pm_prog != reg.pm_prog) || - (pml->pml_map.pm_vers != reg.pm_vers)) { - /* both pml & prevpml move forwards */ - prevpml = pml; - pml = pml->pml_next; - continue; - } - /* found it; pml moves forward, prevpml stays */ - ans = 1; - t = (caddr_t)pml; - pml = pml->pml_next; - if (prevpml == NULL) - pmaplist = pml; - else - prevpml->pml_next = pml; - free(t); - } - if ((!svc_sendreply(xprt, xdr_long, (caddr_t)&ans)) && - debugging) { - fprintf(stderr, "svc_sendreply\n"); - abort(); - } - } - break; - - case PMAPPROC_GETPORT: - /* - * Lookup the mapping for a program,version and return its port - */ - if (!svc_getargs(xprt, xdr_pmap, ®)) - svcerr_decode(xprt); - else { - fnd = find_service(reg.pm_prog, reg.pm_vers, reg.pm_prot); - if (fnd) - port = fnd->pml_map.pm_port; - else - port = 0; - if ((!svc_sendreply(xprt, xdr_long, (caddr_t)&port)) && - debugging) { - fprintf(stderr, "svc_sendreply\n"); - abort(); - } - } - break; - - case PMAPPROC_DUMP: - /* - * Return the current set of mapped program,version - */ - if (!svc_getargs(xprt, xdr_void, NULL)) - svcerr_decode(xprt); - else { - if ((!svc_sendreply(xprt, xdr_pmaplist, - (caddr_t)&pmaplist)) && debugging) { - fprintf(stderr, "svc_sendreply\n"); - abort(); - } - } - break; - - case PMAPPROC_CALLIT: - /* - * Calls a procedure on the local machine. If the requested - * procedure is not registered this procedure does not return - * error information!! - * This procedure is only supported on rpc/udp and calls via - * rpc/udp. It passes null authentication parameters. - */ - callit(rqstp, xprt); - break; - - default: - svcerr_noproc(xprt); - break; - } -} - - -/* - * Stuff for the rmtcall service - */ -#define ARGSIZE 9000 - -typedef struct encap_parms { - u_long arglen; - char *args; -}; - -static bool_t -xdr_encap_parms(xdrs, epp) - XDR *xdrs; - struct encap_parms *epp; -{ - - return (xdr_bytes(xdrs, &(epp->args), &(epp->arglen), ARGSIZE)); -} - -typedef struct rmtcallargs { - u_long rmt_prog; - u_long rmt_vers; - u_long rmt_port; - u_long rmt_proc; - struct encap_parms rmt_args; -}; - -static bool_t -xdr_rmtcall_args(xdrs, cap) - register XDR *xdrs; - register struct rmtcallargs *cap; -{ - - /* does not get a port number */ - if (xdr_u_long(xdrs, &(cap->rmt_prog)) && - xdr_u_long(xdrs, &(cap->rmt_vers)) && - xdr_u_long(xdrs, &(cap->rmt_proc))) { - return (xdr_encap_parms(xdrs, &(cap->rmt_args))); - } - return (FALSE); -} - -static bool_t -xdr_rmtcall_result(xdrs, cap) - register XDR *xdrs; - register struct rmtcallargs *cap; -{ - if (xdr_u_long(xdrs, &(cap->rmt_port))) - return (xdr_encap_parms(xdrs, &(cap->rmt_args))); - return (FALSE); -} - -/* - * only worries about the struct encap_parms part of struct rmtcallargs. - * The arglen must already be set!! - */ -static bool_t -xdr_opaque_parms(xdrs, cap) - XDR *xdrs; - struct rmtcallargs *cap; -{ - - return (xdr_opaque(xdrs, cap->rmt_args.args, cap->rmt_args.arglen)); -} - -/* - * This routine finds and sets the length of incoming opaque paraters - * and then calls xdr_opaque_parms. - */ -static bool_t -xdr_len_opaque_parms(xdrs, cap) - register XDR *xdrs; - struct rmtcallargs *cap; -{ - register u_int beginpos, lowpos, highpos, currpos, pos; - - beginpos = lowpos = pos = xdr_getpos(xdrs); - highpos = lowpos + ARGSIZE; - while ((int)(highpos - lowpos) >= 0) { - currpos = (lowpos + highpos) / 2; - if (xdr_setpos(xdrs, currpos)) { - pos = currpos; - lowpos = currpos + 1; - } else { - highpos = currpos - 1; - } - } - xdr_setpos(xdrs, beginpos); - cap->rmt_args.arglen = pos - beginpos; - return (xdr_opaque_parms(xdrs, cap)); -} - -/* - * Call a remote procedure service - * This procedure is very quiet when things go wrong. - * The proc is written to support broadcast rpc. In the broadcast case, - * a machine should shut-up instead of complain, less the requestor be - * overrun with complaints at the expense of not hearing a valid reply ... - * - * This now forks so that the program & process that it calls can call - * back to the portmapper. - */ -static -callit(rqstp, xprt) - struct svc_req *rqstp; - SVCXPRT *xprt; -{ - struct rmtcallargs a; - struct pmaplist *pml; - u_short port; - struct sockaddr_in me; - int pid, socket = -1; - CLIENT *client; - struct authunix_parms *au = (struct authunix_parms *)rqstp->rq_clntcred; - struct timeval timeout; - char buf[ARGSIZE]; - - timeout.tv_sec = 5; - timeout.tv_usec = 0; - a.rmt_args.args = buf; - if (!svc_getargs(xprt, xdr_rmtcall_args, &a)) - return; - if ((pml = find_service(a.rmt_prog, a.rmt_vers, IPPROTO_UDP)) == NULL) - return; - /* - * fork a child to do the work. Parent immediately returns. - * Child exits upon completion. - */ - if ((pid = fork()) != 0) { - if (debugging && (pid < 0)) { - fprintf(stderr, _("portmap CALLIT: cannot fork.\n")); - } - return; - } - port = pml->pml_map.pm_port; - get_myaddress(&me); - me.sin_port = htons(port); - client = clntudp_create(&me, a.rmt_prog, a.rmt_vers, timeout, &socket); - if (client != (CLIENT *)NULL) { - if (rqstp->rq_cred.oa_flavor == AUTH_UNIX) { - client->cl_auth = authunix_create(au->aup_machname, - au->aup_uid, au->aup_gid, au->aup_len, au->aup_gids); - } - a.rmt_port = (u_long)port; - if (clnt_call(client, a.rmt_proc, xdr_opaque_parms, &a, - xdr_len_opaque_parms, &a, timeout) == RPC_SUCCESS) { - svc_sendreply(xprt, xdr_rmtcall_result, &a); - } - AUTH_DESTROY(client->cl_auth); - clnt_destroy(client); - } - /* (void)close(socket); clnt_destroy already closed it */ - exit(0); -} - -void -reap() -{ - while (wait3(NULL, WNOHANG, NULL) > 0); -} |