1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <stdlib.h> 30 #include <stdio.h> 31 #include <dlfcn.h> 32 33 #include "dh_gssapi.h" 34 #include "dh_common.h" 35 36 #define MECH_LIB_PREFIX1 "/usr/lib/" 37 38 /* 39 * This #ifdef mess figures out if we are to be compiled into an 40 * lp64 binary for the purposes of figuring the absolute location 41 * of gss-api mechanism modules. 42 */ 43 #ifdef _LP64 44 45 #ifdef __sparc 46 47 #define MECH_LIB_PREFIX2 "sparcv9/" 48 49 #elif defined(__amd64) 50 51 #define MECH_LIB_PREFIX2 "amd64/" 52 53 #else /* __sparc */ 54 55 you need to define where under /usr the LP64 libraries live for this platform 56 57 #endif /* __sparc */ 58 59 #else /* _LP64 */ 60 61 #define MECH_LIB_PREFIX2 "" 62 63 #endif /* _LP64 */ 64 65 #define MECH_LIB_DIR "gss/" 66 67 #define MECH_LIB_PREFIX MECH_LIB_PREFIX1 MECH_LIB_PREFIX2 MECH_LIB_DIR 68 69 #define DH_MECH_BACKEND "mech_dh.so.1" 70 71 #define DH_MECH_BACKEND_PATH MECH_LIB_PREFIX DH_MECH_BACKEND 72 73 static char *DHLIB = DH_MECH_BACKEND_PATH; 74 75 #ifndef DH_MECH_SYM 76 #define DH_MECH_SYM "__dh_gss_initialize" 77 #endif 78 79 /* 80 * __dh_generic_initialize: This routine is called from the mechanism 81 * specific gss_mech_initialize routine, which in turn is called from 82 * libgss to initialize a mechanism. This routine takes a pointer to 83 * a struct gss_config, the OID for the calling mechanism and that mechanisms 84 * keyopts. It returns the same gss_mechanism back, but with all fields 85 * correctly initialized. This routine in turn opens the common wire 86 * protocol moduel mech_dh.so.1 to fill in the common parts of the 87 * gss_mechanism. It then associatates the OID and the keyopts with this 88 * gss_mechanism. If there is any failure NULL is return instead. 89 */ 90 gss_mechanism 91 __dh_generic_initialize(gss_mechanism dhmech, /* The mechanism to initialize */ 92 gss_OID_desc mech_type, /* OID of mechanism */ 93 dh_keyopts_t keyopts /* Key mechanism entry points */) 94 { 95 gss_mechanism (*mech_init)(gss_mechanism mech); 96 gss_mechanism mech; 97 void *dlhandle; 98 dh_context_t context; 99 100 /* Open the common backend */ 101 if ((dlhandle = dlopen(DHLIB, RTLD_NOW)) == NULL) { 102 return (NULL); 103 } 104 105 /* Fetch the common backend initialization routine */ 106 mech_init = (gss_mechanism (*)(gss_mechanism)) 107 dlsym(dlhandle, DH_MECH_SYM); 108 109 /* Oops this should not happen */ 110 if (mech_init == NULL) { 111 return (NULL); 112 113 } 114 115 /* Initialize the common parts of the gss_mechanism */ 116 if ((mech = mech_init(dhmech)) == NULL) { 117 return (NULL); 118 } 119 120 /* Set the mechanism OID */ 121 mech->mech_type = mech_type; 122 123 /* Grab the mechanism context */ 124 context = (dh_context_t)mech->context; 125 126 /* Set the keyopts */ 127 context->keyopts = keyopts; 128 129 /* Set a handle to the mechanism OID in the per mechanism context */ 130 context->mech = &mech->mech_type; 131 132 return (mech); 133 } 134