int
rpc_reg(const rpcprog_t prognum, const rpcvers_t versnum,
const rpcproc_t procnum, char *(*progname)(), const xdrproc_t inproc,
const xdrproc_t outproc, const char *nettype)
{
struct netconfig *nconf;
int done = FALSE;
void *handle;
extern mutex_t proglst_lock;
if (procnum == NULLPROC) {
(void) syslog(LOG_ERR, (const char *) "%s: %s %d",
rpc_reg_msg,
(const char *) "can't reassign procedure number %d",
NULLPROC);
return (-1);
}
if (nettype == NULL)
nettype = "netpath"; /* The default behavior */
if ((handle = __rpc_setconf((char *)nettype)) == NULL) {
(void) syslog(LOG_ERR, rpc_reg_err, rpc_reg_msg, __reg_err1);
return (-1);
}
/* VARIABLES PROTECTED BY proglst_lock: proglst */
(void) mutex_lock(&proglst_lock);
while (nconf = __rpc_getconf(handle)) {
struct proglst *pl;
SVCXPRT *svcxprt;
int madenow;
uint_t recvsz;
char *xdrbuf;
char *netid;
madenow = FALSE;
svcxprt = NULL;
for (pl = proglst; pl; pl = pl->p_nxt)
if (strcmp(pl->p_netid, nconf->nc_netid) == 0) {
svcxprt = pl->p_transp;
xdrbuf = pl->p_xdrbuf;
recvsz = pl->p_recvsz;
netid = pl->p_netid;
break;
}
if (svcxprt == NULL) {
struct t_info tinfo;
svcxprt = svc_tli_create(RPC_ANYFD, nconf, NULL, 0, 0);
if (svcxprt == NULL)
continue;
if (t_getinfo(svcxprt->xp_fd, &tinfo) == -1) {
char errorstr[100];
__tli_sys_strerror(errorstr, sizeof (errorstr),
t_errno, errno);
(void) syslog(LOG_ERR, "%s : %s : %s",
rpc_reg_msg, "t_getinfo failed",
errorstr);
SVC_DESTROY(svcxprt);
continue;
}
if ((recvsz = __rpc_get_t_size(0, tinfo.tsdu)) == 0) {
(void) syslog(LOG_ERR, rpc_reg_err, rpc_reg_msg,
__reg_err3);
SVC_DESTROY(svcxprt);
continue;
}
if (((xdrbuf = malloc((unsigned)recvsz)) == NULL) ||
((netid = strdup(nconf->nc_netid)) == NULL)) {
(void) syslog(LOG_ERR, rpc_reg_err, rpc_reg_msg,
__no_mem_str);
SVC_DESTROY(svcxprt);
break;
}
madenow = TRUE;
}
/*
* Check if this (program, version, netid) had already been
* registered. The check may save a few RPC calls to rpcbind
*/
for (pl = proglst; pl; pl = pl->p_nxt)
if ((pl->p_prognum == prognum) &&
(pl->p_versnum == versnum) &&
(strcmp(pl->p_netid, netid) == 0))
break;
if (pl == NULL) { /* Not yet */
/*
* Note that if we're using a portmapper
* instead of rpcbind then we can't do an
* unregister operation here.
*
* The reason is that the portmapper unset
* operation removes all the entries for a
* given program/version regardelss of
* transport protocol.
*
* The caller of this routine needs to ensure
* that __pmap_unset() has been called for all
* program/version service pairs they plan
* to support before they start registering
* each program/version/protocol triplet.
*/
if (!use_portmapper)
(void) rpcb_unset(prognum, versnum, nconf);
} else {
/* so that svc_reg does not call rpcb_set() */
nconf = NULL;
}
if (!svc_reg(svcxprt, prognum, versnum, universal, nconf)) {
(void) syslog(LOG_ERR,
"%s couldn't register prog %d vers %d for %s",
rpc_reg_msg, prognum, versnum, netid);
if (madenow) {
SVC_DESTROY(svcxprt);
free(xdrbuf);
free(netid);
}
continue;
}
pl = malloc(sizeof (struct proglst));
if (pl == NULL) {
(void) syslog(LOG_ERR, rpc_reg_err, rpc_reg_msg,
__no_mem_str);
if (madenow) {
SVC_DESTROY(svcxprt);
free(xdrbuf);
free(netid);
}
break;
}
pl->p_progname = progname;
pl->p_prognum = prognum;
pl->p_versnum = versnum;
pl->p_procnum = procnum;
pl->p_inproc = inproc;
pl->p_outproc = outproc;
pl->p_transp = svcxprt;
pl->p_xdrbuf = xdrbuf;
pl->p_recvsz = recvsz;
pl->p_netid = netid;
pl->p_nxt = proglst;
proglst = pl;
done = TRUE;
}
__rpc_endconf(handle);
(void) mutex_unlock(&proglst_lock);
if (done == FALSE) {
(void) syslog(LOG_ERR,
(const char *) "%s cant find suitable transport for %s",
rpc_reg_msg, nettype);
return (-1);
}
return (0);
}
/*
* This the routine has the same definition as clnt_create(),
* except it takes an additional timeout parameter - a pointer to
* a timeval structure. A NULL value for the pointer indicates
* that the default timeout value should be used.
*
* This function calls clnt_tp_create_timed().
*/
CLIENT *
clnt_create_timed(const char *hostname, rpcprog_t prog, rpcvers_t vers,
const char *netclass, const struct timeval *tp)
{
struct netconfig *nconf;
CLIENT *clnt = NULL;
void *handle;
enum clnt_stat save_cf_stat = RPC_SUCCESS;
struct rpc_err save_cf_error;
char nettype_array[NETIDLEN];
char *nettype = &nettype_array[0];
if (netclass == NULL)
nettype = NULL;
else {
size_t len = strlen(netclass);
if (len >= sizeof (nettype_array)) {
rpc_createerr.cf_stat = RPC_UNKNOWNPROTO;
return (NULL);
}
strcpy(nettype, netclass);
}
if ((handle = __rpc_setconf((char *)nettype)) == NULL) {
rpc_createerr.cf_stat = RPC_UNKNOWNPROTO;
return (NULL);
}
rpc_createerr.cf_stat = RPC_SUCCESS;
while (clnt == NULL) {
if ((nconf = __rpc_getconf(handle)) == NULL) {
if (rpc_createerr.cf_stat == RPC_SUCCESS)
rpc_createerr.cf_stat = RPC_UNKNOWNPROTO;
break;
}
#ifdef CLNT_DEBUG
printf("trying netid %s\n", nconf->nc_netid);
#endif
clnt = clnt_tp_create_timed(hostname, prog, vers, nconf, tp);
if (clnt)
break;
else {
/*
* Since we didn't get a name-to-address
* translation failure here, we remember
* this particular error. The object of
* this is to enable us to return to the
* caller a more-specific error than the
* unhelpful ``Name to address translation
* failed'' which might well occur if we
* merely returned the last error (because
* the local loopbacks are typically the
* last ones in /etc/netconfig and the most
* likely to be unable to translate a host
* name). We also check for a more
* meaningful error than ``unknown host
* name'' for the same reasons.
*/
if (rpc_createerr.cf_stat != RPC_N2AXLATEFAILURE &&
rpc_createerr.cf_stat != RPC_UNKNOWNHOST) {
save_cf_stat = rpc_createerr.cf_stat;
save_cf_error = rpc_createerr.cf_error;
}
}
}
/*
* Attempt to return an error more specific than ``Name to address
* translation failed'' or ``unknown host name''
*/
if ((rpc_createerr.cf_stat == RPC_N2AXLATEFAILURE ||
rpc_createerr.cf_stat == RPC_UNKNOWNHOST) &&
(save_cf_stat != RPC_SUCCESS)) {
rpc_createerr.cf_stat = save_cf_stat;
rpc_createerr.cf_error = save_cf_error;
}
__rpc_endconf(handle);
return (clnt);
}
/*
* For simplified, easy to use kind of rpc interfaces.
* nettype indicates the type of transport on which the service will be
* listening. Used for conservation of the system resource. Only one
* handle is created for all the services (actually one of each netid)
* and same xdrbuf is used for same netid. The size of the arguments
* is also limited by the recvsize for that transport, even if it is
* a COTS transport. This may be wrong, but for cases like these, they
* should not use the simplified interfaces like this.
*
* prognum - program number
* versnum - version number
* procnum - procedure number
* progname - Server routine
* inproc, outproc - in/out XDR procedures
* nettype - nettype
*/
int
rpc_reg(rpcprog_t prognum, rpcvers_t versnum, rpcproc_t procnum,
char *(*progname)(char *), xdrproc_t inproc, xdrproc_t outproc,
char *nettype)
{
struct netconfig *nconf;
int done = FALSE;
void *handle;
if (procnum == NULLPROC) {
warnx("%s can't reassign procedure number %u", rpc_reg_msg,
NULLPROC);
return (-1);
}
if (nettype == NULL)
nettype = "netpath"; /* The default behavior */
if ((handle = __rpc_setconf(nettype)) == NULL) {
warnx(rpc_reg_err, rpc_reg_msg, __reg_err1);
return (-1);
}
/* VARIABLES PROTECTED BY proglst_lock: proglst */
mutex_lock(&proglst_lock);
while ((nconf = __rpc_getconf(handle)) != NULL) {
struct proglst *pl;
SVCXPRT *svcxprt;
int madenow;
u_int recvsz;
char *xdrbuf;
char *netid;
madenow = FALSE;
svcxprt = NULL;
recvsz = 0;
xdrbuf = netid = NULL;
for (pl = proglst; pl; pl = pl->p_nxt) {
if (strcmp(pl->p_netid, nconf->nc_netid) == 0) {
svcxprt = pl->p_transp;
xdrbuf = pl->p_xdrbuf;
recvsz = pl->p_recvsz;
netid = pl->p_netid;
break;
}
}
if (svcxprt == NULL) {
struct __rpc_sockinfo si;
svcxprt = svc_tli_create(RPC_ANYFD, nconf, NULL, 0, 0);
if (svcxprt == NULL)
continue;
if (!__rpc_fd2sockinfo(svcxprt->xp_fd, &si)) {
warnx(rpc_reg_err, rpc_reg_msg, __reg_err2);
SVC_DESTROY(svcxprt);
continue;
}
recvsz = __rpc_get_t_size(si.si_af, si.si_proto, 0);
if (recvsz == 0) {
warnx(rpc_reg_err, rpc_reg_msg, __reg_err3);
SVC_DESTROY(svcxprt);
continue;
}
if (((xdrbuf = malloc((unsigned)recvsz)) == NULL) ||
((netid = strdup(nconf->nc_netid)) == NULL)) {
warnx(rpc_reg_err, rpc_reg_msg, __no_mem_str);
free(xdrbuf);
free(netid);
SVC_DESTROY(svcxprt);
break;
}
madenow = TRUE;
}
/*
* Check if this (program, version, netid) had already been
* registered. The check may save a few RPC calls to rpcbind
*/
for (pl = proglst; pl; pl = pl->p_nxt)
if ((pl->p_prognum == prognum) &&
(pl->p_versnum == versnum) &&
(strcmp(pl->p_netid, netid) == 0))
break;
if (pl == NULL) { /* Not yet */
(void) rpcb_unset(prognum, versnum, nconf);
} else {
/* so that svc_reg does not call rpcb_set() */
nconf = NULL;
}
if (!svc_reg(svcxprt, prognum, versnum, universal, nconf)) {
warnx("%s couldn't register prog %u vers %u for %s",
rpc_reg_msg, (unsigned)prognum,
(unsigned)versnum, netid);
if (madenow) {
SVC_DESTROY(svcxprt);
free(xdrbuf);
free(netid);
}
continue;
}
pl = malloc(sizeof (struct proglst));
if (pl == NULL) {
warnx(rpc_reg_err, rpc_reg_msg, __no_mem_str);
if (madenow) {
SVC_DESTROY(svcxprt);
free(xdrbuf);
free(netid);
}
break;
}
pl->p_progname = progname;
pl->p_prognum = prognum;
pl->p_versnum = versnum;
pl->p_procnum = procnum;
pl->p_inproc = inproc;
pl->p_outproc = outproc;
pl->p_transp = svcxprt;
pl->p_xdrbuf = xdrbuf;
pl->p_recvsz = recvsz;
pl->p_netid = netid;
pl->p_nxt = proglst;
proglst = pl;
done = TRUE;
}
__rpc_endconf(handle);
mutex_unlock(&proglst_lock);
if (done == FALSE) {
warnx("%s can't find suitable transport for %s",
rpc_reg_msg, nettype);
return (-1);
}
return (0);
}
/*
* The highest level interface for server creation.
* Copied from svc_generic.c and cmd/keyserv/key_generic.c, but adapted
* to work only for TPI_CLTS semantics, and to be called only once
* from kwarnd.c. Returns 1 (interface created) on success and 0
* (no interfaces created) on failure.
*/
int
svc_create_local_service(void (*dispatch) (), /* Dispatch function */
u_long prognum, /* Program number */
u_long versnum, /* Version number */
char *nettype, /* Networktype token */
char *servname) /* name of the srvc */
{
int num = 0;
SVCXPRT *xprt;
struct netconfig *nconf;
struct t_bind *bind_addr;
void *net;
int fd;
struct nd_hostserv ns;
struct nd_addrlist *nas;
if ((net = __rpc_setconf(nettype)) == 0) {
(void) syslog(LOG_ERR,
gettext("svc_create: could not read netconfig database"));
return (0);
}
while (nconf = __rpc_getconf(net)) {
if ((strcmp(nconf->nc_protofmly, NC_LOOPBACK)) ||
(nconf->nc_semantics != NC_TPI_COTS_ORD))
continue;
if ((fd = t_open(nconf->nc_device, O_RDWR, NULL)) < 0) {
(void) syslog(LOG_ERR,
gettext("svc_create: %s: cannot open connection: %s"),
nconf->nc_netid, t_errlist[t_errno]);
break;
}
/*
* Negotiate for returning the uid of the caller.
* This should be done before enabling the endpoint for
* service via t_bind() (called in svc_tli_create())
* so that requests to kwarnd contain the uid.
*/
if (__rpc_negotiate_uid(fd) != 0) {
syslog(LOG_ERR,
gettext("Could not negotiate for"
" uid with loopback transport %s"),
nconf->nc_netid);
t_close(fd);
break;
}
/* LINTED pointer alignment */
bind_addr = (struct t_bind *) t_alloc(fd, T_BIND, T_ADDR);
if ((bind_addr == NULL)) {
(void) t_close(fd);
(void) syslog(LOG_ERR,
gettext("svc_create: t_alloc failed\n"));
break;
}
ns.h_host = HOST_SELF;
ns.h_serv = servname;
if (!netdir_getbyname(nconf, &ns, &nas)) {
/* Copy the address */
bind_addr->addr.len = nas->n_addrs->len;
(void) memcpy(bind_addr->addr.buf, nas->n_addrs->buf,
(int) nas->n_addrs->len);
bind_addr->qlen = 8;
netdir_free((char *) nas, ND_ADDRLIST);
} else {
(void) syslog(LOG_ERR,
gettext("svc_create: no well known "
"address for %s on %s\n"),
servname, nconf->nc_netid);
(void) t_free((char *) bind_addr, T_BIND);
bind_addr = NULL;
}
xprt = svc_tli_create(fd, nconf, bind_addr, 0, 0);
if (bind_addr)
(void) t_free((char *) bind_addr, T_BIND);
if (xprt == NULL) {
(void) t_close(fd);
(void) syslog(LOG_ERR,
gettext("svc_create: svc_tli_create failed\n"));
break;
} else {
(void) rpcb_unset(prognum, versnum, nconf);
if (svc_reg(xprt, prognum, versnum, dispatch, nconf)
== FALSE) {
(void) syslog(LOG_ERR,
gettext("svc_create: cannot"
" register %d vers %d on %s"),
prognum, versnum, nconf->nc_netid);
SVC_DESTROY(xprt); /* also t_closes fd */
break;
}
num = 1;
break;
}
}
__rpc_endconf(net);
return (num);
}
/*
* rpc_broadcast_exp()
*
* prog - program number
* vers - version number
* proc - procedure number
* xargs - xdr routine for args
* argsp - pointer to args
* xresults - xdr routine for results
* resultsp - pointer to results
* eachresult - call with each result obtained
* inittime - how long to wait initially
* waittime - maximum time to wait
* nettype - transport type
*/
enum clnt_stat
rpc_broadcast_exp(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc,
xdrproc_t xargs, caddr_t argsp, xdrproc_t xresults, caddr_t resultsp,
resultproc_t eachresult, int inittime, int waittime,
const char *nettype)
{
enum clnt_stat stat = RPC_SUCCESS; /* Return status */
XDR xdr_stream; /* XDR stream */
XDR *xdrs = &xdr_stream;
struct rpc_msg msg; /* RPC message */
struct timeval t;
char *outbuf = NULL; /* Broadcast msg buffer */
char *inbuf = NULL; /* Reply buf */
int inlen;
u_int maxbufsize = 0;
AUTH *sys_auth = authunix_create_default();
u_int i;
void *handle;
char uaddress[1024]; /* A self imposed limit */
char *uaddrp = uaddress;
int pmap_reply_flag; /* reply recvd from PORTMAP */
/* An array of all the suitable broadcast transports */
struct {
int fd; /* File descriptor */
int af;
int proto;
struct netconfig *nconf; /* Netconfig structure */
u_int asize; /* Size of the addr buf */
u_int dsize; /* Size of the data buf */
struct sockaddr_storage raddr; /* Remote address */
broadlist_t nal;
} fdlist[MAXBCAST];
struct pollfd pfd[MAXBCAST];
size_t fdlistno = 0;
struct r_rpcb_rmtcallargs barg; /* Remote arguments */
struct r_rpcb_rmtcallres bres; /* Remote results */
size_t outlen;
struct netconfig *nconf;
int msec;
int pollretval;
int fds_found;
#ifdef PORTMAP
size_t outlen_pmap = 0;
u_long port; /* Remote port number */
int pmap_flag = 0; /* UDP exists ? */
char *outbuf_pmap = NULL;
struct rmtcallargs barg_pmap; /* Remote arguments */
struct rmtcallres bres_pmap; /* Remote results */
u_int udpbufsz = 0;
#endif /* PORTMAP */
if (sys_auth == NULL) {
return (RPC_SYSTEMERROR);
}
/*
* initialization: create a fd, a broadcast address, and send the
* request on the broadcast transport.
* Listen on all of them and on replies, call the user supplied
* function.
*/
if (nettype == NULL)
nettype = "datagram_n";
if ((handle = __rpc_setconf(nettype)) == NULL) {
AUTH_DESTROY(sys_auth);
return (RPC_UNKNOWNPROTO);
}
while ((nconf = __rpc_getconf(handle)) != NULL) {
int fd;
struct __rpc_sockinfo si;
if (nconf->nc_semantics != NC_TPI_CLTS)
continue;
if (fdlistno >= MAXBCAST)
break; /* No more slots available */
if (!__rpc_nconf2sockinfo(nconf, &si))
continue;
TAILQ_INIT(&fdlist[fdlistno].nal);
if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype,
&fdlist[fdlistno].nal) == 0)
continue;
fd = _socket(si.si_af, si.si_socktype, si.si_proto);
if (fd < 0) {
stat = RPC_CANTSEND;
continue;
}
fdlist[fdlistno].af = si.si_af;
fdlist[fdlistno].proto = si.si_proto;
fdlist[fdlistno].fd = fd;
fdlist[fdlistno].nconf = nconf;
fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af);
pfd[fdlistno].events = POLLIN | POLLPRI |
POLLRDNORM | POLLRDBAND;
pfd[fdlistno].fd = fdlist[fdlistno].fd = fd;
fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto,
0);
if (maxbufsize <= fdlist[fdlistno].dsize)
maxbufsize = fdlist[fdlistno].dsize;
#ifdef PORTMAP
if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) {
udpbufsz = fdlist[fdlistno].dsize;
if ((outbuf_pmap = malloc(udpbufsz)) == NULL) {
_close(fd);
stat = RPC_SYSTEMERROR;
goto done_broad;
}
pmap_flag = 1;
}
#endif /* PORTMAP */
fdlistno++;
}
if (fdlistno == 0) {
if (stat == RPC_SUCCESS)
stat = RPC_UNKNOWNPROTO;
goto done_broad;
}
if (maxbufsize == 0) {
if (stat == RPC_SUCCESS)
stat = RPC_CANTSEND;
goto done_broad;
}
inbuf = malloc(maxbufsize);
outbuf = malloc(maxbufsize);
if ((inbuf == NULL) || (outbuf == NULL)) {
stat = RPC_SYSTEMERROR;
goto done_broad;
}
/* Serialize all the arguments which have to be sent */
(void) gettimeofday(&t, NULL);
msg.rm_xid = __RPC_GETXID(&t);
msg.rm_direction = CALL;
msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
msg.rm_call.cb_prog = RPCBPROG;
msg.rm_call.cb_vers = RPCBVERS;
msg.rm_call.cb_proc = RPCBPROC_CALLIT;
barg.prog = prog;
barg.vers = vers;
barg.proc = proc;
barg.args.args_val = argsp;
barg.xdr_args = xargs;
bres.addr = uaddrp;
bres.results.results_val = resultsp;
bres.xdr_res = xresults;
msg.rm_call.cb_cred = sys_auth->ah_cred;
msg.rm_call.cb_verf = sys_auth->ah_verf;
xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE);
if ((!xdr_callmsg(xdrs, &msg)) ||
(!xdr_rpcb_rmtcallargs(xdrs,
(struct rpcb_rmtcallargs *)(void *)&barg))) {
stat = RPC_CANTENCODEARGS;
goto done_broad;
}
outlen = xdr_getpos(xdrs);
xdr_destroy(xdrs);
#ifdef PORTMAP
/* Prepare the packet for version 2 PORTMAP */
if (pmap_flag) {
msg.rm_xid++; /* One way to distinguish */
msg.rm_call.cb_prog = PMAPPROG;
msg.rm_call.cb_vers = PMAPVERS;
msg.rm_call.cb_proc = PMAPPROC_CALLIT;
barg_pmap.prog = prog;
barg_pmap.vers = vers;
barg_pmap.proc = proc;
barg_pmap.args_ptr = argsp;
barg_pmap.xdr_args = xargs;
bres_pmap.port_ptr = &port;
bres_pmap.xdr_results = xresults;
bres_pmap.results_ptr = resultsp;
xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE);
if ((! xdr_callmsg(xdrs, &msg)) ||
(! xdr_rmtcall_args(xdrs, &barg_pmap))) {
stat = RPC_CANTENCODEARGS;
goto done_broad;
}
outlen_pmap = xdr_getpos(xdrs);
xdr_destroy(xdrs);
}
#endif /* PORTMAP */
/*
* Basic loop: broadcast the packets to transports which
* support data packets of size such that one can encode
* all the arguments.
* Wait a while for response(s).
* The response timeout grows larger per iteration.
*/
for (msec = inittime; msec <= waittime; msec += msec) {
struct broadif *bip;
/* Broadcast all the packets now */
for (i = 0; i < fdlistno; i++) {
if (fdlist[i].dsize < outlen) {
stat = RPC_CANTSEND;
continue;
}
for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL;
bip = TAILQ_NEXT(bip, link)) {
void *addr;
addr = &bip->broadaddr;
__rpc_broadenable(fdlist[i].af, fdlist[i].fd,
bip);
/*
* Only use version 3 if lowvers is not set
*/
if (!__rpc_lowvers)
if (_sendto(fdlist[i].fd, outbuf,
outlen, 0, (struct sockaddr*)addr,
(size_t)fdlist[i].asize) !=
outlen) {
#ifdef RPC_DEBUG
perror("sendto");
#endif
warnx("clnt_bcast: cannot send "
"broadcast packet");
stat = RPC_CANTSEND;
continue;
}
#ifdef RPC_DEBUG
if (!__rpc_lowvers)
fprintf(stderr, "Broadcast packet sent "
"for %s\n",
fdlist[i].nconf->nc_netid);
#endif
#ifdef PORTMAP
/*
* Send the version 2 packet also
* for UDP/IP
*/
if (pmap_flag &&
fdlist[i].proto == IPPROTO_UDP) {
if (_sendto(fdlist[i].fd, outbuf_pmap,
outlen_pmap, 0, addr,
(size_t)fdlist[i].asize) !=
outlen_pmap) {
warnx("clnt_bcast: "
"Cannot send broadcast packet");
stat = RPC_CANTSEND;
continue;
}
}
#ifdef RPC_DEBUG
fprintf(stderr, "PMAP Broadcast packet "
"sent for %s\n",
fdlist[i].nconf->nc_netid);
#endif
#endif /* PORTMAP */
}
/* End for sending all packets on this transport */
} /* End for sending on all transports */
if (eachresult == NULL) {
stat = RPC_SUCCESS;
goto done_broad;
}
/*
* Get all the replies from these broadcast requests
*/
recv_again:
switch (pollretval = _poll(pfd, fdlistno, msec)) {
case 0: /* timed out */
stat = RPC_TIMEDOUT;
continue;
case -1: /* some kind of error - we ignore it */
goto recv_again;
} /* end of poll results switch */
for (i = fds_found = 0;
i < fdlistno && fds_found < pollretval; i++) {
bool_t done = FALSE;
if (pfd[i].revents == 0)
continue;
else if (pfd[i].revents & POLLNVAL) {
/*
* Something bad has happened to this descri-
* ptor. We can cause _poll() to ignore
* it simply by using a negative fd. We do that
* rather than compacting the pfd[] and fdlist[]
* arrays.
*/
pfd[i].fd = -1;
fds_found++;
continue;
} else
fds_found++;
#ifdef RPC_DEBUG
fprintf(stderr, "response for %s\n",
fdlist[i].nconf->nc_netid);
#endif
try_again:
inlen = _recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize,
0, (struct sockaddr *)(void *)&fdlist[i].raddr,
&fdlist[i].asize);
if (inlen < 0) {
if (errno == EINTR)
goto try_again;
warnx("clnt_bcast: Cannot receive reply to "
"broadcast");
stat = RPC_CANTRECV;
continue;
}
if (inlen < sizeof (u_int32_t))
continue; /* Drop that and go ahead */
/*
* see if reply transaction id matches sent id.
* If so, decode the results. If return id is xid + 1
* it was a PORTMAP reply
*/
if (*((u_int32_t *)(void *)(inbuf)) ==
*((u_int32_t *)(void *)(outbuf))) {
pmap_reply_flag = 0;
msg.acpted_rply.ar_verf = _null_auth;
msg.acpted_rply.ar_results.where =
(caddr_t)(void *)&bres;
msg.acpted_rply.ar_results.proc =
(xdrproc_t)xdr_rpcb_rmtcallres;
#ifdef PORTMAP
} else if (pmap_flag &&
*((u_int32_t *)(void *)(inbuf)) ==
*((u_int32_t *)(void *)(outbuf_pmap))) {
pmap_reply_flag = 1;
msg.acpted_rply.ar_verf = _null_auth;
msg.acpted_rply.ar_results.where =
(caddr_t)(void *)&bres_pmap;
msg.acpted_rply.ar_results.proc =
(xdrproc_t)xdr_rmtcallres;
#endif /* PORTMAP */
} else
continue;
xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE);
if (xdr_replymsg(xdrs, &msg)) {
if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) &&
(msg.acpted_rply.ar_stat == SUCCESS)) {
struct netbuf taddr, *np;
struct sockaddr_in *sin;
#ifdef PORTMAP
if (pmap_flag && pmap_reply_flag) {
sin = (struct sockaddr_in *)
(void *)&fdlist[i].raddr;
sin->sin_port =
htons((u_short)port);
taddr.len = taddr.maxlen =
fdlist[i].raddr.ss_len;
taddr.buf = &fdlist[i].raddr;
done = (*eachresult)(resultsp,
&taddr, fdlist[i].nconf);
} else {
#endif /* PORTMAP */
#ifdef RPC_DEBUG
fprintf(stderr, "uaddr %s\n",
uaddrp);
#endif
np = uaddr2taddr(
fdlist[i].nconf, uaddrp);
done = (*eachresult)(resultsp,
np, fdlist[i].nconf);
free(np);
#ifdef PORTMAP
}
#endif /* PORTMAP */
}
/* otherwise, we just ignore the errors ... */
}
/* else some kind of deserialization problem ... */
xdrs->x_op = XDR_FREE;
msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void;
(void) xdr_replymsg(xdrs, &msg);
(void) (*xresults)(xdrs, resultsp);
XDR_DESTROY(xdrs);
if (done) {
stat = RPC_SUCCESS;
goto done_broad;
} else {
goto recv_again;
}
} /* The recv for loop */
} /* The giant for loop */
done_broad:
free(inbuf);
free(outbuf);
#ifdef PORTMAP
free(outbuf_pmap);
#endif /* PORTMAP */
for (i = 0; i < fdlistno; i++) {
(void)_close(fdlist[i].fd);
__rpc_freebroadifs(&fdlist[i].nal);
}
AUTH_DESTROY(sys_auth);
(void) __rpc_endconf(handle);
return (stat);
}