791 lines
18 KiB
C
791 lines
18 KiB
C
/* $NetBSD: svc_vc.c,v 1.7 2000/08/03 00:01:53 fvdl Exp $ */
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/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char *sccsid = "@(#)svc_tcp.c 1.21 87/08/11 Copyr 1984 Sun Micro";
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static char *sccsid = "@(#)svc_tcp.c 2.2 88/08/01 4.0 RPCSRC";
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* svc_vc.c, Server side for Connection Oriented based RPC.
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*
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* Actually implements two flavors of transporter -
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* a tcp rendezvouser (a listner and connection establisher)
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* and a record/tcp stream.
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*/
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#include "namespace.h"
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#include "reentrant.h"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/poll.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <sys/time.h>
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#include <sys/uio.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <rpc/rpc.h>
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#include "rpc_com.h"
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#include "un-namespace.h"
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extern rwlock_t svc_fd_lock;
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static SVCXPRT *makefd_xprt(int, u_int, u_int);
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static bool_t rendezvous_request(SVCXPRT *, struct rpc_msg *);
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static enum xprt_stat rendezvous_stat(SVCXPRT *);
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static void svc_vc_destroy(SVCXPRT *);
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static void __svc_vc_dodestroy (SVCXPRT *);
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static int read_vc(void *, void *, int);
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static int write_vc(void *, void *, int);
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static enum xprt_stat svc_vc_stat(SVCXPRT *);
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static bool_t svc_vc_recv(SVCXPRT *, struct rpc_msg *);
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static bool_t svc_vc_getargs(SVCXPRT *, xdrproc_t, void *);
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static bool_t svc_vc_freeargs(SVCXPRT *, xdrproc_t, void *);
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static bool_t svc_vc_reply(SVCXPRT *, struct rpc_msg *);
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static void svc_vc_rendezvous_ops(SVCXPRT *);
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static void svc_vc_ops(SVCXPRT *);
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static bool_t svc_vc_control(SVCXPRT *xprt, const u_int rq, void *in);
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static bool_t svc_vc_rendezvous_control (SVCXPRT *xprt, const u_int rq,
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void *in);
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struct cf_rendezvous { /* kept in xprt->xp_p1 for rendezvouser */
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u_int sendsize;
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u_int recvsize;
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int maxrec;
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};
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struct cf_conn { /* kept in xprt->xp_p1 for actual connection */
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enum xprt_stat strm_stat;
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u_int32_t x_id;
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XDR xdrs;
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char verf_body[MAX_AUTH_BYTES];
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u_int sendsize;
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u_int recvsize;
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int maxrec;
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bool_t nonblock;
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struct timeval last_recv_time;
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};
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/*
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* Usage:
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* xprt = svc_vc_create(sock, send_buf_size, recv_buf_size);
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*
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* Creates, registers, and returns a (rpc) tcp based transporter.
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* Once *xprt is initialized, it is registered as a transporter
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* see (svc.h, xprt_register). This routine returns
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* a NULL if a problem occurred.
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*
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* The filedescriptor passed in is expected to refer to a bound, but
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* not yet connected socket.
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*
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* Since streams do buffered io similar to stdio, the caller can specify
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* how big the send and receive buffers are via the second and third parms;
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* 0 => use the system default.
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*/
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SVCXPRT *
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svc_vc_create(fd, sendsize, recvsize)
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int fd;
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u_int sendsize;
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u_int recvsize;
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{
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SVCXPRT *xprt;
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struct cf_rendezvous *r = NULL;
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struct __rpc_sockinfo si;
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struct sockaddr_storage sslocal;
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socklen_t slen;
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r = mem_alloc(sizeof(*r));
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if (r == NULL) {
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warnx("svc_vc_create: out of memory");
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goto cleanup_svc_vc_create;
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}
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if (!__rpc_fd2sockinfo(fd, &si))
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return NULL;
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r->sendsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)sendsize);
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r->recvsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)recvsize);
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r->maxrec = __svc_maxrec;
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xprt = mem_alloc(sizeof(SVCXPRT));
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if (xprt == NULL) {
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warnx("svc_vc_create: out of memory");
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goto cleanup_svc_vc_create;
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}
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xprt->xp_tp = NULL;
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xprt->xp_p1 = r;
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xprt->xp_p2 = NULL;
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xprt->xp_p3 = NULL;
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xprt->xp_verf = _null_auth;
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svc_vc_rendezvous_ops(xprt);
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xprt->xp_port = (u_short)-1; /* It is the rendezvouser */
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xprt->xp_fd = fd;
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slen = sizeof (struct sockaddr_storage);
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if (_getsockname(fd, (struct sockaddr *)(void *)&sslocal, &slen) < 0) {
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warnx("svc_vc_create: could not retrieve local addr");
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goto cleanup_svc_vc_create;
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}
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xprt->xp_ltaddr.maxlen = xprt->xp_ltaddr.len = sslocal.ss_len;
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xprt->xp_ltaddr.buf = mem_alloc((size_t)sslocal.ss_len);
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if (xprt->xp_ltaddr.buf == NULL) {
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warnx("svc_vc_create: no mem for local addr");
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goto cleanup_svc_vc_create;
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}
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memcpy(xprt->xp_ltaddr.buf, &sslocal, (size_t)sslocal.ss_len);
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xprt->xp_rtaddr.maxlen = sizeof (struct sockaddr_storage);
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xprt_register(xprt);
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return (xprt);
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cleanup_svc_vc_create:
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if (r != NULL)
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mem_free(r, sizeof(*r));
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return (NULL);
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}
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/*
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* Like svtcp_create(), except the routine takes any *open* UNIX file
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* descriptor as its first input.
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*/
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SVCXPRT *
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svc_fd_create(fd, sendsize, recvsize)
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int fd;
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u_int sendsize;
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u_int recvsize;
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{
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struct sockaddr_storage ss;
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socklen_t slen;
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SVCXPRT *ret;
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assert(fd != -1);
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ret = makefd_xprt(fd, sendsize, recvsize);
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if (ret == NULL)
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return NULL;
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slen = sizeof (struct sockaddr_storage);
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if (_getsockname(fd, (struct sockaddr *)(void *)&ss, &slen) < 0) {
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warnx("svc_fd_create: could not retrieve local addr");
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goto freedata;
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}
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ret->xp_ltaddr.maxlen = ret->xp_ltaddr.len = ss.ss_len;
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ret->xp_ltaddr.buf = mem_alloc((size_t)ss.ss_len);
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if (ret->xp_ltaddr.buf == NULL) {
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warnx("svc_fd_create: no mem for local addr");
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goto freedata;
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}
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memcpy(ret->xp_ltaddr.buf, &ss, (size_t)ss.ss_len);
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slen = sizeof (struct sockaddr_storage);
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if (_getpeername(fd, (struct sockaddr *)(void *)&ss, &slen) < 0) {
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warnx("svc_fd_create: could not retrieve remote addr");
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goto freedata;
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}
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ret->xp_rtaddr.maxlen = ret->xp_rtaddr.len = ss.ss_len;
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ret->xp_rtaddr.buf = mem_alloc((size_t)ss.ss_len);
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if (ret->xp_rtaddr.buf == NULL) {
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warnx("svc_fd_create: no mem for local addr");
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goto freedata;
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}
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memcpy(ret->xp_rtaddr.buf, &ss, (size_t)ss.ss_len);
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#ifdef PORTMAP
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if (ss.ss_family == AF_INET || ss.ss_family == AF_LOCAL) {
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ret->xp_raddr = *(struct sockaddr_in *)ret->xp_rtaddr.buf;
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ret->xp_addrlen = sizeof (struct sockaddr_in);
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}
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#endif /* PORTMAP */
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return ret;
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freedata:
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if (ret->xp_ltaddr.buf != NULL)
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mem_free(ret->xp_ltaddr.buf, rep->xp_ltaddr.maxlen);
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return NULL;
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}
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static SVCXPRT *
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makefd_xprt(fd, sendsize, recvsize)
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int fd;
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u_int sendsize;
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u_int recvsize;
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{
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SVCXPRT *xprt;
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struct cf_conn *cd;
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const char *netid;
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struct __rpc_sockinfo si;
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assert(fd != -1);
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xprt = mem_alloc(sizeof(SVCXPRT));
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if (xprt == NULL) {
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warnx("svc_vc: makefd_xprt: out of memory");
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goto done;
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}
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memset(xprt, 0, sizeof *xprt);
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cd = mem_alloc(sizeof(struct cf_conn));
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if (cd == NULL) {
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warnx("svc_tcp: makefd_xprt: out of memory");
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mem_free(xprt, sizeof(SVCXPRT));
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xprt = NULL;
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goto done;
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}
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cd->strm_stat = XPRT_IDLE;
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xdrrec_create(&(cd->xdrs), sendsize, recvsize,
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xprt, read_vc, write_vc);
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xprt->xp_p1 = cd;
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xprt->xp_verf.oa_base = cd->verf_body;
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svc_vc_ops(xprt); /* truely deals with calls */
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xprt->xp_port = 0; /* this is a connection, not a rendezvouser */
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xprt->xp_fd = fd;
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if (__rpc_fd2sockinfo(fd, &si) && __rpc_sockinfo2netid(&si, &netid))
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xprt->xp_netid = strdup(netid);
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xprt_register(xprt);
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done:
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return (xprt);
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}
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/*ARGSUSED*/
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static bool_t
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rendezvous_request(xprt, msg)
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SVCXPRT *xprt;
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struct rpc_msg *msg;
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{
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int sock, flags;
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struct cf_rendezvous *r;
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struct cf_conn *cd;
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struct sockaddr_storage addr;
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socklen_t len;
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struct __rpc_sockinfo si;
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SVCXPRT *newxprt;
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fd_set cleanfds;
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assert(xprt != NULL);
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assert(msg != NULL);
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r = (struct cf_rendezvous *)xprt->xp_p1;
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again:
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len = sizeof addr;
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if ((sock = _accept(xprt->xp_fd, (struct sockaddr *)(void *)&addr,
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&len)) < 0) {
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if (errno == EINTR)
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goto again;
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/*
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* Clean out the most idle file descriptor when we're
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* running out.
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*/
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if (errno == EMFILE || errno == ENFILE) {
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cleanfds = svc_fdset;
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__svc_clean_idle(&cleanfds, 0, FALSE);
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goto again;
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}
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return (FALSE);
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}
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/*
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* make a new transporter (re-uses xprt)
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*/
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newxprt = makefd_xprt(sock, r->sendsize, r->recvsize);
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newxprt->xp_rtaddr.buf = mem_alloc(len);
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if (newxprt->xp_rtaddr.buf == NULL)
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return (FALSE);
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memcpy(newxprt->xp_rtaddr.buf, &addr, len);
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newxprt->xp_rtaddr.len = len;
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#ifdef PORTMAP
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if (addr.ss_family == AF_INET || addr.ss_family == AF_LOCAL) {
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newxprt->xp_raddr = *(struct sockaddr_in *)newxprt->xp_rtaddr.buf;
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newxprt->xp_addrlen = sizeof (struct sockaddr_in);
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}
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#endif /* PORTMAP */
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if (__rpc_fd2sockinfo(sock, &si) && si.si_proto == IPPROTO_TCP) {
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len = 1;
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/* XXX fvdl - is this useful? */
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_setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, &len, sizeof (len));
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}
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cd = (struct cf_conn *)newxprt->xp_p1;
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cd->recvsize = r->recvsize;
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cd->sendsize = r->sendsize;
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cd->maxrec = r->maxrec;
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if (cd->maxrec != 0) {
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flags = _fcntl(sock, F_GETFL, 0);
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if (flags == -1)
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return (FALSE);
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if (_fcntl(sock, F_SETFL, flags | O_NONBLOCK) == -1)
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return (FALSE);
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if (cd->recvsize > cd->maxrec)
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cd->recvsize = cd->maxrec;
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cd->nonblock = TRUE;
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__xdrrec_setnonblock(&cd->xdrs, cd->maxrec);
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} else
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cd->nonblock = FALSE;
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gettimeofday(&cd->last_recv_time, NULL);
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return (FALSE); /* there is never an rpc msg to be processed */
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}
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/*ARGSUSED*/
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static enum xprt_stat
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rendezvous_stat(xprt)
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SVCXPRT *xprt;
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{
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return (XPRT_IDLE);
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}
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static void
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svc_vc_destroy(xprt)
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SVCXPRT *xprt;
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{
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assert(xprt != NULL);
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xprt_unregister(xprt);
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__svc_vc_dodestroy(xprt);
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}
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static void
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__svc_vc_dodestroy(xprt)
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SVCXPRT *xprt;
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{
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struct cf_conn *cd;
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struct cf_rendezvous *r;
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cd = (struct cf_conn *)xprt->xp_p1;
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if (xprt->xp_fd != RPC_ANYFD)
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(void)_close(xprt->xp_fd);
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if (xprt->xp_port != 0) {
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/* a rendezvouser socket */
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r = (struct cf_rendezvous *)xprt->xp_p1;
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mem_free(r, sizeof (struct cf_rendezvous));
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xprt->xp_port = 0;
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} else {
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/* an actual connection socket */
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XDR_DESTROY(&(cd->xdrs));
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mem_free(cd, sizeof(struct cf_conn));
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}
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if (xprt->xp_rtaddr.buf)
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mem_free(xprt->xp_rtaddr.buf, xprt->xp_rtaddr.maxlen);
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if (xprt->xp_ltaddr.buf)
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mem_free(xprt->xp_ltaddr.buf, xprt->xp_ltaddr.maxlen);
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if (xprt->xp_tp)
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free(xprt->xp_tp);
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if (xprt->xp_netid)
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free(xprt->xp_netid);
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mem_free(xprt, sizeof(SVCXPRT));
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}
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/*ARGSUSED*/
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static bool_t
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svc_vc_control(xprt, rq, in)
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SVCXPRT *xprt;
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const u_int rq;
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void *in;
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{
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return (FALSE);
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}
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static bool_t
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svc_vc_rendezvous_control(xprt, rq, in)
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SVCXPRT *xprt;
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const u_int rq;
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void *in;
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{
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struct cf_rendezvous *cfp;
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cfp = (struct cf_rendezvous *)xprt->xp_p1;
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if (cfp == NULL)
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return (FALSE);
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switch (rq) {
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case SVCGET_CONNMAXREC:
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*(int *)in = cfp->maxrec;
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break;
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case SVCSET_CONNMAXREC:
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cfp->maxrec = *(int *)in;
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break;
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default:
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return (FALSE);
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}
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return (TRUE);
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}
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/*
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* reads data from the tcp or uip connection.
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* any error is fatal and the connection is closed.
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* (And a read of zero bytes is a half closed stream => error.)
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* All read operations timeout after 35 seconds. A timeout is
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* fatal for the connection.
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*/
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static int
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read_vc(xprtp, buf, len)
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void *xprtp;
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void *buf;
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int len;
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{
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SVCXPRT *xprt;
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int sock;
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int milliseconds = 35 * 1000;
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struct pollfd pollfd;
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struct cf_conn *cfp;
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xprt = (SVCXPRT *)xprtp;
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assert(xprt != NULL);
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sock = xprt->xp_fd;
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|
cfp = (struct cf_conn *)xprt->xp_p1;
|
|
|
|
if (cfp->nonblock) {
|
|
len = _read(sock, buf, (size_t)len);
|
|
if (len < 0) {
|
|
if (errno == EAGAIN)
|
|
len = 0;
|
|
else
|
|
goto fatal_err;
|
|
}
|
|
if (len != 0)
|
|
gettimeofday(&cfp->last_recv_time, NULL);
|
|
return len;
|
|
}
|
|
|
|
do {
|
|
pollfd.fd = sock;
|
|
pollfd.events = POLLIN;
|
|
pollfd.revents = 0;
|
|
switch (_poll(&pollfd, 1, milliseconds)) {
|
|
case -1:
|
|
if (errno == EINTR)
|
|
continue;
|
|
/*FALLTHROUGH*/
|
|
case 0:
|
|
goto fatal_err;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
} while ((pollfd.revents & POLLIN) == 0);
|
|
|
|
if ((len = _read(sock, buf, (size_t)len)) > 0) {
|
|
gettimeofday(&cfp->last_recv_time, NULL);
|
|
return (len);
|
|
}
|
|
|
|
fatal_err:
|
|
((struct cf_conn *)(xprt->xp_p1))->strm_stat = XPRT_DIED;
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* writes data to the tcp connection.
|
|
* Any error is fatal and the connection is closed.
|
|
*/
|
|
static int
|
|
write_vc(xprtp, buf, len)
|
|
void *xprtp;
|
|
void *buf;
|
|
int len;
|
|
{
|
|
SVCXPRT *xprt;
|
|
int i, cnt;
|
|
struct cf_conn *cd;
|
|
struct timeval tv0, tv1;
|
|
|
|
xprt = (SVCXPRT *)xprtp;
|
|
assert(xprt != NULL);
|
|
|
|
cd = (struct cf_conn *)xprt->xp_p1;
|
|
|
|
if (cd->nonblock)
|
|
gettimeofday(&tv0, NULL);
|
|
|
|
for (cnt = len; cnt > 0; cnt -= i, buf += i) {
|
|
i = _write(xprt->xp_fd, buf, (size_t)cnt);
|
|
if (i < 0) {
|
|
if (errno != EAGAIN || !cd->nonblock) {
|
|
cd->strm_stat = XPRT_DIED;
|
|
return (-1);
|
|
}
|
|
if (cd->nonblock && i != cnt) {
|
|
/*
|
|
* For non-blocking connections, do not
|
|
* take more than 2 seconds writing the
|
|
* data out.
|
|
*
|
|
* XXX 2 is an arbitrary amount.
|
|
*/
|
|
gettimeofday(&tv1, NULL);
|
|
if (tv1.tv_sec - tv0.tv_sec >= 2) {
|
|
cd->strm_stat = XPRT_DIED;
|
|
return (-1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return (len);
|
|
}
|
|
|
|
static enum xprt_stat
|
|
svc_vc_stat(xprt)
|
|
SVCXPRT *xprt;
|
|
{
|
|
struct cf_conn *cd;
|
|
|
|
assert(xprt != NULL);
|
|
|
|
cd = (struct cf_conn *)(xprt->xp_p1);
|
|
|
|
if (cd->strm_stat == XPRT_DIED)
|
|
return (XPRT_DIED);
|
|
if (! xdrrec_eof(&(cd->xdrs)))
|
|
return (XPRT_MOREREQS);
|
|
return (XPRT_IDLE);
|
|
}
|
|
|
|
static bool_t
|
|
svc_vc_recv(xprt, msg)
|
|
SVCXPRT *xprt;
|
|
struct rpc_msg *msg;
|
|
{
|
|
struct cf_conn *cd;
|
|
XDR *xdrs;
|
|
|
|
assert(xprt != NULL);
|
|
assert(msg != NULL);
|
|
|
|
cd = (struct cf_conn *)(xprt->xp_p1);
|
|
xdrs = &(cd->xdrs);
|
|
|
|
if (cd->nonblock) {
|
|
if (!__xdrrec_getrec(xdrs, &cd->strm_stat, TRUE))
|
|
return FALSE;
|
|
}
|
|
|
|
xdrs->x_op = XDR_DECODE;
|
|
(void)xdrrec_skiprecord(xdrs);
|
|
if (xdr_callmsg(xdrs, msg)) {
|
|
cd->x_id = msg->rm_xid;
|
|
return (TRUE);
|
|
}
|
|
cd->strm_stat = XPRT_DIED;
|
|
return (FALSE);
|
|
}
|
|
|
|
static bool_t
|
|
svc_vc_getargs(xprt, xdr_args, args_ptr)
|
|
SVCXPRT *xprt;
|
|
xdrproc_t xdr_args;
|
|
void *args_ptr;
|
|
{
|
|
|
|
assert(xprt != NULL);
|
|
/* args_ptr may be NULL */
|
|
return ((*xdr_args)(&(((struct cf_conn *)(xprt->xp_p1))->xdrs),
|
|
args_ptr));
|
|
}
|
|
|
|
static bool_t
|
|
svc_vc_freeargs(xprt, xdr_args, args_ptr)
|
|
SVCXPRT *xprt;
|
|
xdrproc_t xdr_args;
|
|
void *args_ptr;
|
|
{
|
|
XDR *xdrs;
|
|
|
|
assert(xprt != NULL);
|
|
/* args_ptr may be NULL */
|
|
|
|
xdrs = &(((struct cf_conn *)(xprt->xp_p1))->xdrs);
|
|
|
|
xdrs->x_op = XDR_FREE;
|
|
return ((*xdr_args)(xdrs, args_ptr));
|
|
}
|
|
|
|
static bool_t
|
|
svc_vc_reply(xprt, msg)
|
|
SVCXPRT *xprt;
|
|
struct rpc_msg *msg;
|
|
{
|
|
struct cf_conn *cd;
|
|
XDR *xdrs;
|
|
bool_t rstat;
|
|
|
|
assert(xprt != NULL);
|
|
assert(msg != NULL);
|
|
|
|
cd = (struct cf_conn *)(xprt->xp_p1);
|
|
xdrs = &(cd->xdrs);
|
|
|
|
xdrs->x_op = XDR_ENCODE;
|
|
msg->rm_xid = cd->x_id;
|
|
rstat = xdr_replymsg(xdrs, msg);
|
|
(void)xdrrec_endofrecord(xdrs, TRUE);
|
|
return (rstat);
|
|
}
|
|
|
|
static void
|
|
svc_vc_ops(xprt)
|
|
SVCXPRT *xprt;
|
|
{
|
|
static struct xp_ops ops;
|
|
static struct xp_ops2 ops2;
|
|
extern mutex_t ops_lock;
|
|
|
|
/* VARIABLES PROTECTED BY ops_lock: ops, ops2 */
|
|
|
|
mutex_lock(&ops_lock);
|
|
if (ops.xp_recv == NULL) {
|
|
ops.xp_recv = svc_vc_recv;
|
|
ops.xp_stat = svc_vc_stat;
|
|
ops.xp_getargs = svc_vc_getargs;
|
|
ops.xp_reply = svc_vc_reply;
|
|
ops.xp_freeargs = svc_vc_freeargs;
|
|
ops.xp_destroy = svc_vc_destroy;
|
|
ops2.xp_control = svc_vc_control;
|
|
}
|
|
xprt->xp_ops = &ops;
|
|
xprt->xp_ops2 = &ops2;
|
|
mutex_unlock(&ops_lock);
|
|
}
|
|
|
|
static void
|
|
svc_vc_rendezvous_ops(xprt)
|
|
SVCXPRT *xprt;
|
|
{
|
|
static struct xp_ops ops;
|
|
static struct xp_ops2 ops2;
|
|
extern mutex_t ops_lock;
|
|
|
|
mutex_lock(&ops_lock);
|
|
if (ops.xp_recv == NULL) {
|
|
ops.xp_recv = rendezvous_request;
|
|
ops.xp_stat = rendezvous_stat;
|
|
ops.xp_getargs =
|
|
(bool_t (*)(SVCXPRT *, xdrproc_t, void *))abort;
|
|
ops.xp_reply =
|
|
(bool_t (*)(SVCXPRT *, struct rpc_msg *))abort;
|
|
ops.xp_freeargs =
|
|
(bool_t (*)(SVCXPRT *, xdrproc_t, void *))abort,
|
|
ops.xp_destroy = svc_vc_destroy;
|
|
ops2.xp_control = svc_vc_rendezvous_control;
|
|
}
|
|
xprt->xp_ops = &ops;
|
|
xprt->xp_ops2 = &ops2;
|
|
mutex_unlock(&ops_lock);
|
|
}
|
|
|
|
/*
|
|
* Get the effective UID of the sending process. Used by rpcbind, keyserv
|
|
* and rpc.yppasswdd on AF_LOCAL.
|
|
*/
|
|
int
|
|
__rpc_get_local_uid(SVCXPRT *transp, uid_t *uid) {
|
|
int sock, ret;
|
|
gid_t egid;
|
|
uid_t euid;
|
|
struct sockaddr *sa;
|
|
|
|
sock = transp->xp_fd;
|
|
sa = (struct sockaddr *)transp->xp_rtaddr.buf;
|
|
if (sa->sa_family == AF_LOCAL) {
|
|
ret = getpeereid(sock, &euid, &egid);
|
|
if (ret == 0)
|
|
*uid = euid;
|
|
return (ret);
|
|
} else
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* Destroy xprts that have not have had any activity in 'timeout' seconds.
|
|
* If 'cleanblock' is true, blocking connections (the default) are also
|
|
* cleaned. If timeout is 0, the least active connection is picked.
|
|
*/
|
|
bool_t
|
|
__svc_clean_idle(fd_set *fds, int timeout, bool_t cleanblock)
|
|
{
|
|
int i, ncleaned;
|
|
SVCXPRT *xprt, *least_active;
|
|
struct timeval tv, tdiff, tmax;
|
|
struct cf_conn *cd;
|
|
|
|
gettimeofday(&tv, NULL);
|
|
tmax.tv_sec = tmax.tv_usec = 0;
|
|
least_active = NULL;
|
|
rwlock_wrlock(&svc_fd_lock);
|
|
for (i = ncleaned = 0; i <= svc_maxfd; i++) {
|
|
if (FD_ISSET(i, fds)) {
|
|
xprt = __svc_xports[i];
|
|
if (xprt == NULL || xprt->xp_ops == NULL ||
|
|
xprt->xp_ops->xp_recv != svc_vc_recv)
|
|
continue;
|
|
cd = (struct cf_conn *)xprt->xp_p1;
|
|
if (!cleanblock && !cd->nonblock)
|
|
continue;
|
|
if (timeout == 0) {
|
|
timersub(&tv, &cd->last_recv_time, &tdiff);
|
|
if (timercmp(&tdiff, &tmax, >)) {
|
|
tmax = tdiff;
|
|
least_active = xprt;
|
|
}
|
|
continue;
|
|
}
|
|
if (tv.tv_sec - cd->last_recv_time.tv_sec > timeout) {
|
|
__xprt_unregister_unlocked(xprt);
|
|
__svc_vc_dodestroy(xprt);
|
|
ncleaned++;
|
|
}
|
|
}
|
|
}
|
|
if (timeout == 0 && least_active != NULL) {
|
|
__xprt_unregister_unlocked(least_active);
|
|
__svc_vc_dodestroy(least_active);
|
|
ncleaned++;
|
|
}
|
|
rwlock_unlock(&svc_fd_lock);
|
|
return ncleaned > 0 ? TRUE : FALSE;
|
|
}
|