1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 3*0Sstevel@tonic-gate * Use is subject to license terms. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate 6*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 7*0Sstevel@tonic-gate /* from kerbd_handle.c 1.3 92/01/29 SMI */ 8*0Sstevel@tonic-gate 9*0Sstevel@tonic-gate /* 10*0Sstevel@tonic-gate * kwarnd_handle.c, Interface to kwarnd 11*0Sstevel@tonic-gate * 12*0Sstevel@tonic-gate */ 13*0Sstevel@tonic-gate 14*0Sstevel@tonic-gate #include <unistd.h> 15*0Sstevel@tonic-gate #include <rpc/rpc.h> 16*0Sstevel@tonic-gate #include <rpc/clnt.h> 17*0Sstevel@tonic-gate #include <stdio.h> 18*0Sstevel@tonic-gate #include <string.h> 19*0Sstevel@tonic-gate #include <netconfig.h> 20*0Sstevel@tonic-gate #include <sys/utsname.h> 21*0Sstevel@tonic-gate #include "kwarnd.h" 22*0Sstevel@tonic-gate 23*0Sstevel@tonic-gate #ifdef DEBUG 24*0Sstevel@tonic-gate #define dprt(msg) 25*0Sstevel@tonic-gate #else 26*0Sstevel@tonic-gate #define dprt(msg) 27*0Sstevel@tonic-gate #endif /* DEBUG */ 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate /* 31*0Sstevel@tonic-gate * Keep the handle cached. This call may be made quite often. 32*0Sstevel@tonic-gate */ 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate CLIENT * 35*0Sstevel@tonic-gate getkwarnd_handle(void) 36*0Sstevel@tonic-gate { 37*0Sstevel@tonic-gate void *localhandle; 38*0Sstevel@tonic-gate struct netconfig *nconf; 39*0Sstevel@tonic-gate struct netconfig *tpconf; 40*0Sstevel@tonic-gate static CLIENT *clnt; 41*0Sstevel@tonic-gate struct timeval wait_time; 42*0Sstevel@tonic-gate struct utsname u; 43*0Sstevel@tonic-gate static char *hostname; 44*0Sstevel@tonic-gate static bool_t first_time = TRUE; 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate #define TOTAL_TIMEOUT 1000 /* total timeout talking to kwarnd */ 47*0Sstevel@tonic-gate #define TOTAL_TRIES 1 /* Number of tries */ 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate if (clnt) 50*0Sstevel@tonic-gate return (clnt); 51*0Sstevel@tonic-gate if (!(localhandle = setnetconfig())) 52*0Sstevel@tonic-gate return (NULL); 53*0Sstevel@tonic-gate tpconf = NULL; 54*0Sstevel@tonic-gate if (first_time == TRUE) { 55*0Sstevel@tonic-gate if (uname(&u) == -1) { 56*0Sstevel@tonic-gate (void) endnetconfig(localhandle); 57*0Sstevel@tonic-gate return ((CLIENT *)NULL); 58*0Sstevel@tonic-gate } 59*0Sstevel@tonic-gate if ((hostname = strdup(u.nodename)) == (char *)NULL) { 60*0Sstevel@tonic-gate (void) endnetconfig(localhandle); 61*0Sstevel@tonic-gate return ((CLIENT *)NULL); 62*0Sstevel@tonic-gate } 63*0Sstevel@tonic-gate first_time = FALSE; 64*0Sstevel@tonic-gate } 65*0Sstevel@tonic-gate while (nconf = getnetconfig(localhandle)) { 66*0Sstevel@tonic-gate if (strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0) { 67*0Sstevel@tonic-gate if (nconf->nc_semantics == NC_TPI_COTS_ORD) { 68*0Sstevel@tonic-gate clnt = clnt_tp_create(hostname, 69*0Sstevel@tonic-gate KWARNPROG, KWARNVERS, nconf); 70*0Sstevel@tonic-gate if (clnt) { 71*0Sstevel@tonic-gate dprt("got COTS_ORD\n"); 72*0Sstevel@tonic-gate break; 73*0Sstevel@tonic-gate } 74*0Sstevel@tonic-gate } else { 75*0Sstevel@tonic-gate tpconf = nconf; 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate } 78*0Sstevel@tonic-gate } 79*0Sstevel@tonic-gate if ((clnt == NULL) && (tpconf)) { 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate /* Now, try the connection-oriented loopback transport */ 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate clnt = clnt_tp_create(hostname, KWARNPROG, KWARNVERS, tpconf); 84*0Sstevel@tonic-gate #ifdef DEBUG 85*0Sstevel@tonic-gate if (clnt) { 86*0Sstevel@tonic-gate dprt("got COTS\n"); 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate #endif /* DEBUG */ 89*0Sstevel@tonic-gate } 90*0Sstevel@tonic-gate (void) endnetconfig(localhandle); 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate /* 93*0Sstevel@tonic-gate * This bit of code uses an as yet unimplemented argument to 94*0Sstevel@tonic-gate * clnt_control(). CLSET_SVC_PRIV specifies that the underlying 95*0Sstevel@tonic-gate * loopback transport should be checked to ensure it is 96*0Sstevel@tonic-gate * connected to a process running as root. If so, the clnt_control() 97*0Sstevel@tonic-gate * call returns TRUE. If not, it returns FALSE. 98*0Sstevel@tonic-gate */ 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate #ifdef CLSET_SVC_PRIV 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate if (clnt_control(clnt, CLSET_SVC_PRIV, NULL) != TRUE) { 103*0Sstevel@tonic-gate clnt_destroy(clnt); 104*0Sstevel@tonic-gate clnt = NULL; 105*0Sstevel@tonic-gate return (NULL); 106*0Sstevel@tonic-gate { 107*0Sstevel@tonic-gate #endif 108*0Sstevel@tonic-gate if (clnt == NULL) 109*0Sstevel@tonic-gate return (NULL); 110*0Sstevel@tonic-gate 111*0Sstevel@tonic-gate clnt->cl_auth = authsys_create("", getuid(), 0, 0, NULL); 112*0Sstevel@tonic-gate if (clnt->cl_auth == NULL) { 113*0Sstevel@tonic-gate clnt_destroy(clnt); 114*0Sstevel@tonic-gate clnt = NULL; 115*0Sstevel@tonic-gate return (NULL); 116*0Sstevel@tonic-gate } 117*0Sstevel@tonic-gate wait_time.tv_sec = TOTAL_TIMEOUT/TOTAL_TRIES; 118*0Sstevel@tonic-gate wait_time.tv_usec = 0; 119*0Sstevel@tonic-gate (void) clnt_control(clnt, CLSET_RETRY_TIMEOUT, (char *)&wait_time); 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate return (clnt); 122*0Sstevel@tonic-gate } 123