[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/sunrpc/clnt_udp.c b/ap/libc/glibc/glibc-2.23/sunrpc/clnt_udp.c
new file mode 100644
index 0000000..a6cf5f1
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/sunrpc/clnt_udp.c
@@ -0,0 +1,620 @@
+/*
+ * clnt_udp.c, Implements a UDP/IP based, client side RPC.
+ *
+ * Copyright (c) 2010, Oracle America, Inc.
+ *
+ * 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 the "Oracle America, 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.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <libintl.h>
+#include <rpc/rpc.h>
+#include <rpc/xdr.h>
+#include <rpc/clnt.h>
+#include <sys/poll.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <netdb.h>
+#include <errno.h>
+#include <stdint.h>
+#include <rpc/pmap_clnt.h>
+#include <net/if.h>
+#include <ifaddrs.h>
+#include <wchar.h>
+#include <fcntl.h>
+
+#ifdef IP_RECVERR
+#include <errqueue.h>
+#include <sys/uio.h>
+#endif
+
+#include <kernel-features.h>
+
+extern u_long _create_xid (void);
+
+/*
+ * UDP bases client side rpc operations
+ */
+static enum clnt_stat clntudp_call (CLIENT *, u_long, xdrproc_t, caddr_t,
+ xdrproc_t, caddr_t, struct timeval);
+static void clntudp_abort (void);
+static void clntudp_geterr (CLIENT *, struct rpc_err *);
+static bool_t clntudp_freeres (CLIENT *, xdrproc_t, caddr_t);
+static bool_t clntudp_control (CLIENT *, int, char *);
+static void clntudp_destroy (CLIENT *);
+
+static const struct clnt_ops udp_ops =
+{
+ clntudp_call,
+ clntudp_abort,
+ clntudp_geterr,
+ clntudp_freeres,
+ clntudp_destroy,
+ clntudp_control
+};
+
+/*
+ * Private data kept per client handle
+ */
+struct cu_data
+ {
+ int cu_sock;
+ bool_t cu_closeit;
+ struct sockaddr_in cu_raddr;
+ int cu_rlen;
+ struct timeval cu_wait;
+ struct timeval cu_total;
+ struct rpc_err cu_error;
+ XDR cu_outxdrs;
+ u_int cu_xdrpos;
+ u_int cu_sendsz;
+ char *cu_outbuf;
+ u_int cu_recvsz;
+ char cu_inbuf[1];
+ };
+
+/*
+ * Create a UDP based client handle.
+ * If *sockp<0, *sockp is set to a newly created UPD socket.
+ * If raddr->sin_port is 0 a binder on the remote machine
+ * is consulted for the correct port number.
+ * NB: It is the clients responsibility to close *sockp.
+ * NB: The rpch->cl_auth is initialized to null authentication.
+ * Caller may wish to set this something more useful.
+ *
+ * wait is the amount of time used between retransmitting a call if
+ * no response has been heard; retransmission occurs until the actual
+ * rpc call times out.
+ *
+ * sendsz and recvsz are the maximum allowable packet sizes that can be
+ * sent and received.
+ */
+CLIENT *
+__libc_clntudp_bufcreate (struct sockaddr_in *raddr, u_long program,
+ u_long version, struct timeval wait, int *sockp,
+ u_int sendsz, u_int recvsz, int flags)
+{
+ CLIENT *cl;
+ struct cu_data *cu = NULL;
+ struct rpc_msg call_msg;
+
+ cl = (CLIENT *) mem_alloc (sizeof (CLIENT));
+ sendsz = ((sendsz + 3) / 4) * 4;
+ recvsz = ((recvsz + 3) / 4) * 4;
+ cu = (struct cu_data *) mem_alloc (sizeof (*cu) + sendsz + recvsz);
+ if (cl == NULL || cu == NULL)
+ {
+ struct rpc_createerr *ce = &get_rpc_createerr ();
+ (void) __fxprintf (NULL, "%s: %s",
+ "clntudp_create", _("out of memory\n"));
+ ce->cf_stat = RPC_SYSTEMERROR;
+ ce->cf_error.re_errno = ENOMEM;
+ goto fooy;
+ }
+ cu->cu_outbuf = &cu->cu_inbuf[recvsz];
+
+ if (raddr->sin_port == 0)
+ {
+ u_short port;
+ if ((port =
+ pmap_getport (raddr, program, version, IPPROTO_UDP)) == 0)
+ {
+ goto fooy;
+ }
+ raddr->sin_port = htons (port);
+ }
+ cl->cl_ops = (struct clnt_ops *) &udp_ops;
+ cl->cl_private = (caddr_t) cu;
+ cu->cu_raddr = *raddr;
+ cu->cu_rlen = sizeof (cu->cu_raddr);
+ cu->cu_wait = wait;
+ cu->cu_total.tv_sec = -1;
+ cu->cu_total.tv_usec = -1;
+ cu->cu_sendsz = sendsz;
+ cu->cu_recvsz = recvsz;
+ call_msg.rm_xid = _create_xid ();
+ call_msg.rm_direction = CALL;
+ call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
+ call_msg.rm_call.cb_prog = program;
+ call_msg.rm_call.cb_vers = version;
+ xdrmem_create (&(cu->cu_outxdrs), cu->cu_outbuf, sendsz, XDR_ENCODE);
+ if (!xdr_callhdr (&(cu->cu_outxdrs), &call_msg))
+ {
+ goto fooy;
+ }
+ cu->cu_xdrpos = XDR_GETPOS (&(cu->cu_outxdrs));
+ if (*sockp < 0)
+ {
+ *sockp = __socket (AF_INET, SOCK_DGRAM|SOCK_NONBLOCK|flags, IPPROTO_UDP);
+ if (__glibc_unlikely (*sockp < 0))
+ {
+ struct rpc_createerr *ce = &get_rpc_createerr ();
+ ce->cf_stat = RPC_SYSTEMERROR;
+ ce->cf_error.re_errno = errno;
+ goto fooy;
+ }
+ /* attempt to bind to prov port */
+ (void) bindresvport (*sockp, (struct sockaddr_in *) 0);
+#ifdef IP_RECVERR
+ {
+ int on = 1;
+ __setsockopt (*sockp, SOL_IP, IP_RECVERR, &on, sizeof(on));
+ }
+#endif
+ cu->cu_closeit = TRUE;
+ }
+ else
+ {
+ cu->cu_closeit = FALSE;
+ }
+ cu->cu_sock = *sockp;
+ cl->cl_auth = authnone_create ();
+ return cl;
+fooy:
+ if (cu)
+ mem_free ((caddr_t) cu, sizeof (*cu) + sendsz + recvsz);
+ if (cl)
+ mem_free ((caddr_t) cl, sizeof (CLIENT));
+ return (CLIENT *) NULL;
+}
+#ifdef EXPORT_RPC_SYMBOLS
+libc_hidden_def (__libc_clntudp_bufcreate)
+#else
+libc_hidden_nolink_sunrpc (__libc_clntudp_bufcreate, GLIBC_PRIVATE)
+#endif
+
+CLIENT *
+clntudp_bufcreate (struct sockaddr_in *raddr, u_long program, u_long version,
+ struct timeval wait, int *sockp, u_int sendsz,
+ u_int recvsz)
+{
+ return __libc_clntudp_bufcreate (raddr, program, version, wait,
+ sockp, sendsz, recvsz, 0);
+}
+libc_hidden_nolink_sunrpc (clntudp_bufcreate, GLIBC_2_0)
+
+CLIENT *
+clntudp_create (struct sockaddr_in *raddr, u_long program, u_long version,
+ struct timeval wait, int *sockp)
+{
+ return __libc_clntudp_bufcreate (raddr, program, version, wait,
+ sockp, UDPMSGSIZE, UDPMSGSIZE, 0);
+}
+#ifdef EXPORT_RPC_SYMBOLS
+libc_hidden_def (clntudp_create)
+#else
+libc_hidden_nolink_sunrpc (clntudp_create, GLIBC_2_0)
+#endif
+
+static int
+is_network_up (int sock)
+{
+ struct ifaddrs *ifa;
+
+ if (getifaddrs (&ifa) != 0)
+ return 0;
+
+ struct ifaddrs *run = ifa;
+ while (run != NULL)
+ {
+ if ((run->ifa_flags & IFF_UP) != 0
+ && run->ifa_addr != NULL
+ && run->ifa_addr->sa_family == AF_INET)
+ break;
+
+ run = run->ifa_next;
+ }
+
+ freeifaddrs (ifa);
+
+ return run != NULL;
+}
+
+static enum clnt_stat
+clntudp_call (/* client handle */
+ CLIENT *cl,
+ /* procedure number */
+ u_long proc,
+ /* xdr routine for args */
+ xdrproc_t xargs,
+ /* pointer to args */
+ caddr_t argsp,
+ /* xdr routine for results */
+ xdrproc_t xresults,
+ /* pointer to results */
+ caddr_t resultsp,
+ /* seconds to wait before giving up */
+ struct timeval utimeout)
+{
+ struct cu_data *cu = (struct cu_data *) cl->cl_private;
+ XDR *xdrs;
+ int outlen = 0;
+ int inlen;
+ socklen_t fromlen;
+ struct pollfd fd;
+ int milliseconds = (cu->cu_wait.tv_sec * 1000) +
+ (cu->cu_wait.tv_usec / 1000);
+ struct sockaddr_in from;
+ struct rpc_msg reply_msg;
+ XDR reply_xdrs;
+ struct timeval time_waited;
+ bool_t ok;
+ int nrefreshes = 2; /* number of times to refresh cred */
+ struct timeval timeout;
+ int anyup; /* any network interface up */
+
+ if (cu->cu_total.tv_usec == -1)
+ {
+ timeout = utimeout; /* use supplied timeout */
+ }
+ else
+ {
+ timeout = cu->cu_total; /* use default timeout */
+ }
+
+ time_waited.tv_sec = 0;
+ time_waited.tv_usec = 0;
+call_again:
+ xdrs = &(cu->cu_outxdrs);
+ if (xargs == NULL)
+ goto get_reply;
+ xdrs->x_op = XDR_ENCODE;
+ XDR_SETPOS (xdrs, cu->cu_xdrpos);
+ /*
+ * the transaction is the first thing in the out buffer
+ */
+ (*(uint32_t *) (cu->cu_outbuf))++;
+ if ((!XDR_PUTLONG (xdrs, (long *) &proc)) ||
+ (!AUTH_MARSHALL (cl->cl_auth, xdrs)) ||
+ (!(*xargs) (xdrs, argsp)))
+ return (cu->cu_error.re_status = RPC_CANTENCODEARGS);
+ outlen = (int) XDR_GETPOS (xdrs);
+
+send_again:
+ if (__sendto (cu->cu_sock, cu->cu_outbuf, outlen, 0,
+ (struct sockaddr *) &(cu->cu_raddr), cu->cu_rlen)
+ != outlen)
+ {
+ cu->cu_error.re_errno = errno;
+ return (cu->cu_error.re_status = RPC_CANTSEND);
+ }
+
+ /*
+ * Hack to provide rpc-based message passing
+ */
+ if (timeout.tv_sec == 0 && timeout.tv_usec == 0)
+ {
+ return (cu->cu_error.re_status = RPC_TIMEDOUT);
+ }
+ get_reply:
+ /*
+ * sub-optimal code appears here because we have
+ * some clock time to spare while the packets are in flight.
+ * (We assume that this is actually only executed once.)
+ */
+ reply_msg.acpted_rply.ar_verf = _null_auth;
+ reply_msg.acpted_rply.ar_results.where = resultsp;
+ reply_msg.acpted_rply.ar_results.proc = xresults;
+ fd.fd = cu->cu_sock;
+ fd.events = POLLIN;
+ anyup = 0;
+ for (;;)
+ {
+ switch (__poll (&fd, 1, milliseconds))
+ {
+
+ case 0:
+ if (anyup == 0)
+ {
+ anyup = is_network_up (cu->cu_sock);
+ if (!anyup)
+ return (cu->cu_error.re_status = RPC_CANTRECV);
+ }
+
+ time_waited.tv_sec += cu->cu_wait.tv_sec;
+ time_waited.tv_usec += cu->cu_wait.tv_usec;
+ while (time_waited.tv_usec >= 1000000)
+ {
+ time_waited.tv_sec++;
+ time_waited.tv_usec -= 1000000;
+ }
+ if ((time_waited.tv_sec < timeout.tv_sec) ||
+ ((time_waited.tv_sec == timeout.tv_sec) &&
+ (time_waited.tv_usec < timeout.tv_usec)))
+ goto send_again;
+ return (cu->cu_error.re_status = RPC_TIMEDOUT);
+
+ /*
+ * buggy in other cases because time_waited is not being
+ * updated.
+ */
+ case -1:
+ if (errno == EINTR)
+ continue;
+ cu->cu_error.re_errno = errno;
+ return (cu->cu_error.re_status = RPC_CANTRECV);
+ }
+#ifdef IP_RECVERR
+ if (fd.revents & POLLERR)
+ {
+ struct msghdr msg;
+ struct cmsghdr *cmsg;
+ struct sock_extended_err *e;
+ struct sockaddr_in err_addr;
+ struct iovec iov;
+ char *cbuf = (char *) alloca (outlen + 256);
+ int ret;
+
+ iov.iov_base = cbuf + 256;
+ iov.iov_len = outlen;
+ msg.msg_name = (void *) &err_addr;
+ msg.msg_namelen = sizeof (err_addr);
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+ msg.msg_flags = 0;
+ msg.msg_control = cbuf;
+ msg.msg_controllen = 256;
+ ret = __recvmsg (cu->cu_sock, &msg, MSG_ERRQUEUE);
+ if (ret >= 0
+ && memcmp (cbuf + 256, cu->cu_outbuf, ret) == 0
+ && (msg.msg_flags & MSG_ERRQUEUE)
+ && ((msg.msg_namelen == 0
+ && ret >= 12)
+ || (msg.msg_namelen == sizeof (err_addr)
+ && err_addr.sin_family == AF_INET
+ && memcmp (&err_addr.sin_addr, &cu->cu_raddr.sin_addr,
+ sizeof (err_addr.sin_addr)) == 0
+ && err_addr.sin_port == cu->cu_raddr.sin_port)))
+ for (cmsg = CMSG_FIRSTHDR (&msg); cmsg;
+ cmsg = CMSG_NXTHDR (&msg, cmsg))
+ if (cmsg->cmsg_level == SOL_IP && cmsg->cmsg_type == IP_RECVERR)
+ {
+ e = (struct sock_extended_err *) CMSG_DATA(cmsg);
+ cu->cu_error.re_errno = e->ee_errno;
+ return (cu->cu_error.re_status = RPC_CANTRECV);
+ }
+ }
+#endif
+ do
+ {
+ fromlen = sizeof (struct sockaddr);
+ inlen = __recvfrom (cu->cu_sock, cu->cu_inbuf,
+ (int) cu->cu_recvsz, MSG_DONTWAIT,
+ (struct sockaddr *) &from, &fromlen);
+ }
+ while (inlen < 0 && errno == EINTR);
+ if (inlen < 0)
+ {
+ if (errno == EWOULDBLOCK)
+ continue;
+ cu->cu_error.re_errno = errno;
+ return (cu->cu_error.re_status = RPC_CANTRECV);
+ }
+ if (inlen < 4)
+ continue;
+
+ /* see if reply transaction id matches sent id.
+ Don't do this if we only wait for a replay */
+ if (xargs != NULL
+ && memcmp (cu->cu_inbuf, cu->cu_outbuf, sizeof (u_int32_t)) != 0)
+ continue;
+ /* we now assume we have the proper reply */
+ break;
+ }
+
+ /*
+ * now decode and validate the response
+ */
+ xdrmem_create (&reply_xdrs, cu->cu_inbuf, (u_int) inlen, XDR_DECODE);
+ ok = xdr_replymsg (&reply_xdrs, &reply_msg);
+ /* XDR_DESTROY(&reply_xdrs); save a few cycles on noop destroy */
+ if (ok)
+ {
+ _seterr_reply (&reply_msg, &(cu->cu_error));
+ if (cu->cu_error.re_status == RPC_SUCCESS)
+ {
+ if (!AUTH_VALIDATE (cl->cl_auth,
+ &reply_msg.acpted_rply.ar_verf))
+ {
+ cu->cu_error.re_status = RPC_AUTHERROR;
+ cu->cu_error.re_why = AUTH_INVALIDRESP;
+ }
+ if (reply_msg.acpted_rply.ar_verf.oa_base != NULL)
+ {
+ xdrs->x_op = XDR_FREE;
+ (void) xdr_opaque_auth (xdrs, &(reply_msg.acpted_rply.ar_verf));
+ }
+ } /* end successful completion */
+ else
+ {
+ /* maybe our credentials need to be refreshed ... */
+ if (nrefreshes > 0 && AUTH_REFRESH (cl->cl_auth))
+ {
+ nrefreshes--;
+ goto call_again;
+ }
+ } /* end of unsuccessful completion */
+ } /* end of valid reply message */
+ else
+ {
+ cu->cu_error.re_status = RPC_CANTDECODERES;
+ }
+ return cu->cu_error.re_status;
+}
+
+static void
+clntudp_geterr (CLIENT *cl, struct rpc_err *errp)
+{
+ struct cu_data *cu = (struct cu_data *) cl->cl_private;
+
+ *errp = cu->cu_error;
+}
+
+
+static bool_t
+clntudp_freeres (CLIENT *cl, xdrproc_t xdr_res, caddr_t res_ptr)
+{
+ struct cu_data *cu = (struct cu_data *) cl->cl_private;
+ XDR *xdrs = &(cu->cu_outxdrs);
+
+ xdrs->x_op = XDR_FREE;
+ return (*xdr_res) (xdrs, res_ptr);
+}
+
+static void
+clntudp_abort (void)
+{
+}
+
+static bool_t
+clntudp_control (CLIENT *cl, int request, char *info)
+{
+ struct cu_data *cu = (struct cu_data *) cl->cl_private;
+ u_long ul;
+ u_int32_t ui32;
+
+ switch (request)
+ {
+ case CLSET_FD_CLOSE:
+ cu->cu_closeit = TRUE;
+ break;
+ case CLSET_FD_NCLOSE:
+ cu->cu_closeit = FALSE;
+ break;
+ case CLSET_TIMEOUT:
+ cu->cu_total = *(struct timeval *) info;
+ break;
+ case CLGET_TIMEOUT:
+ *(struct timeval *) info = cu->cu_total;
+ break;
+ case CLSET_RETRY_TIMEOUT:
+ cu->cu_wait = *(struct timeval *) info;
+ break;
+ case CLGET_RETRY_TIMEOUT:
+ *(struct timeval *) info = cu->cu_wait;
+ break;
+ case CLGET_SERVER_ADDR:
+ *(struct sockaddr_in *) info = cu->cu_raddr;
+ break;
+ case CLGET_FD:
+ *(int *)info = cu->cu_sock;
+ break;
+ case CLGET_XID:
+ /*
+ * use the knowledge that xid is the
+ * first element in the call structure *.
+ * This will get the xid of the PREVIOUS call
+ */
+ memcpy (&ui32, cu->cu_outbuf, sizeof (ui32));
+ ul = ntohl (ui32);
+ memcpy (info, &ul, sizeof (ul));
+ break;
+ case CLSET_XID:
+ /* This will set the xid of the NEXT call */
+ memcpy (&ul, info, sizeof (ul));
+ ui32 = htonl (ul - 1);
+ memcpy (cu->cu_outbuf, &ui32, sizeof (ui32));
+ /* decrement by 1 as clntudp_call() increments once */
+ break;
+ case CLGET_VERS:
+ /*
+ * This RELIES on the information that, in the call body,
+ * the version number field is the fifth field from the
+ * beginning of the RPC header. MUST be changed if the
+ * call_struct is changed
+ */
+ memcpy (&ui32, cu->cu_outbuf + 4 * BYTES_PER_XDR_UNIT, sizeof (ui32));
+ ul = ntohl (ui32);
+ memcpy (info, &ul, sizeof (ul));
+ break;
+ case CLSET_VERS:
+ memcpy (&ul, info, sizeof (ul));
+ ui32 = htonl (ul);
+ memcpy (cu->cu_outbuf + 4 * BYTES_PER_XDR_UNIT, &ui32, sizeof (ui32));
+ break;
+ case CLGET_PROG:
+ /*
+ * This RELIES on the information that, in the call body,
+ * the program number field is the field from the
+ * beginning of the RPC header. MUST be changed if the
+ * call_struct is changed
+ */
+ memcpy (&ui32, cu->cu_outbuf + 3 * BYTES_PER_XDR_UNIT, sizeof (ui32));
+ ul = ntohl (ui32);
+ memcpy (info, &ul, sizeof (ul));
+ break;
+ case CLSET_PROG:
+ memcpy (&ul, info, sizeof (ul));
+ ui32 = htonl (ul);
+ memcpy (cu->cu_outbuf + 3 * BYTES_PER_XDR_UNIT, &ui32, sizeof (ui32));
+ break;
+ /* The following are only possible with TI-RPC */
+ case CLGET_SVC_ADDR:
+ case CLSET_SVC_ADDR:
+ case CLSET_PUSH_TIMOD:
+ case CLSET_POP_TIMOD:
+ default:
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static void
+clntudp_destroy (CLIENT *cl)
+{
+ struct cu_data *cu = (struct cu_data *) cl->cl_private;
+
+ if (cu->cu_closeit)
+ {
+ (void) __close (cu->cu_sock);
+ }
+ XDR_DESTROY (&(cu->cu_outxdrs));
+ mem_free ((caddr_t) cu, (sizeof (*cu) + cu->cu_sendsz + cu->cu_recvsz));
+ mem_free ((caddr_t) cl, sizeof (CLIENT));
+}