char *
get_uaddr(int fd, struct netconfig *nconf, struct netbuf *nb)
{
struct nfs_svc_args nsa;
char *ua, *ua2, *mua = NULL;
char me[MAXHOSTNAMELEN];
struct nd_addrlist *nas;
struct nd_hostserv hs;
struct nd_mergearg ma;
ua = taddr2uaddr(nconf, nb);
if (ua == NULL) {
#ifdef DEBUG
fprintf(stderr, "taddr2uaddr failed for netid %s\n",
nconf->nc_netid);
#endif
return (NULL);
}
gethostname(me, MAXHOSTNAMELEN);
hs.h_host = me;
hs.h_serv = "nfs";
if (netdir_getbyname(nconf, &hs, &nas)) {
#ifdef DEBUG
netdir_perror("netdir_getbyname");
#endif
return (NULL);
}
ua2 = taddr2uaddr(nconf, nas->n_addrs);
if (ua2 == NULL) {
#ifdef DEBUG
fprintf(stderr, "taddr2uaddr failed for netid %s.\n",
nconf->nc_netid);
#endif
return (NULL);
}
ma.s_uaddr = ua;
ma.c_uaddr = ua2;
ma.m_uaddr = NULL;
if (netdir_options(nconf, ND_MERGEADDR, 0, (char *)&ma)) {
#ifdef DEBUG
netdir_perror("netdir_options");
#endif
return (NULL);
}
mua = ma.m_uaddr;
return (mua);
}
/*
* check for trusted host and user
*/
static int
check_host(
struct svc_req *rqstp /* RPC stuff */
)
{
struct authsys_parms *sys_credp;
SVCXPRT *transp = rqstp->rq_xprt;
struct netconfig *nconfp = NULL;
struct nd_hostservlist *hservlistp = NULL;
int i;
int rval = -1;
char *inplace = NULL;
/* check for root */
/*LINTED*/
sys_credp = (struct authsys_parms *)rqstp->rq_clntcred;
assert(sys_credp != NULL);
if (sys_credp->aup_uid != 0)
goto out;
/* get hostnames */
if (transp->xp_netid == NULL) {
md_eprintf("transp->xp_netid == NULL\n");
goto out;
}
if ((nconfp = getnetconfigent(transp->xp_netid)) == NULL) {
#ifdef DEBUG
nc_perror("getnetconfigent(transp->xp_netid)");
#endif
goto out;
}
if ((__netdir_getbyaddr_nosrv(nconfp, &hservlistp, &transp->xp_rtaddr)
!= 0) || (hservlistp == NULL)) {
#ifdef DEBUG
netdir_perror("netdir_getbyaddr(transp->xp_rtaddr)");
#endif
goto out;
}
/* check hostnames */
for (i = 0; (i < hservlistp->h_cnt); ++i) {
struct nd_hostserv *hservp = &hservlistp->h_hostservs[i];
char *hostname = hservp->h_host;
inplace = strdup(hostname);
/* localhost is OK */
if (strcmp(hostname, mynode()) == 0) {
rval = 0;
goto out;
}
/* check for remote root access */
if (ruserok(hostname, 1, "root", "root") == 0) {
rval = 0;
goto out;
}
sdssc_cm_nm2nid(inplace);
if (strcmp(inplace, hostname)) {
/*
* If the names are now different it indicates
* that hostname was converted to a nodeid. This
* will only occur if hostname is part of the same
* cluster that the current node is in.
* If the machine is not running in a cluster than
* sdssc_cm_nm2nid is a noop which leaves inplace
* alone.
*/
rval = 0;
goto out;
}
}
/* cleanup, return success */
out:
if (inplace)
free(inplace);
if (hservlistp != NULL)
netdir_free(hservlistp, ND_HOSTSERVLIST);
if (nconfp != NULL)
Free(nconfp);
return (rval);
}
