| 1 | /*
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| 2 | * Unix SMB/CIFS implementation.
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| 3 | * Generate AFS tickets
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| 4 | * Copyright (C) Volker Lendecke 2004
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| 5 | *
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| 6 | * This program is free software; you can redistribute it and/or modify
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| 7 | * it under the terms of the GNU General Public License as published by
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| 8 | * the Free Software Foundation; either version 3 of the License, or
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| 9 | * (at your option) any later version.
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| 10 | *
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| 11 | * This program is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>.
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| 18 | */
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| 19 |
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| 20 | #include "includes.h"
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| 21 |
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| 22 | #ifdef WITH_FAKE_KASERVER
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| 23 |
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| 24 | #define NO_ASN1_TYPEDEFS 1
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| 25 |
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| 26 | #include <afs/param.h>
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| 27 | #include <afs/stds.h>
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| 28 | #include <afs/afs.h>
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| 29 | #include <afs/auth.h>
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| 30 | #include <afs/venus.h>
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| 31 | #include <asm/unistd.h>
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| 32 | #include <openssl/des.h>
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| 33 | #include <sys/syscall.h>
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| 34 |
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| 35 | int afs_syscall( int subcall,
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| 36 | char * path,
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| 37 | int cmd,
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| 38 | char * cmarg,
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| 39 | int follow)
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| 40 | {
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| 41 | /*
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| 42 | return( syscall( SYS_afs_syscall, subcall, path, cmd, cmarg, follow));
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| 43 | */
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| 44 | int errcode;
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| 45 | struct afsprocdata afs_syscall_data;
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| 46 | afs_syscall_data.syscall = subcall;
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| 47 | afs_syscall_data.param1 = (long)path;
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| 48 | afs_syscall_data.param2 = cmd;
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| 49 | afs_syscall_data.param3 = (long)cmarg;
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| 50 | afs_syscall_data.param4 = follow;
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| 51 | int proc_afs_file = open(PROC_SYSCALL_FNAME, O_RDWR);
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| 52 | if (proc_afs_file < 0)
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| 53 | proc_afs_file = open(PROC_SYSCALL_ARLA_FNAME, O_RDWR);
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| 54 | if (proc_afs_file < 0)
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| 55 | return -1;
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| 56 | errcode = ioctl(proc_afs_file, VIOC_SYSCALL, &afs_syscall_data);
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| 57 | close(proc_afs_file);
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| 58 | return errcode;
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| 59 | }
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| 60 |
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| 61 | struct ClearToken {
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| 62 | uint32 AuthHandle;
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| 63 | char HandShakeKey[8];
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| 64 | uint32 ViceId;
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| 65 | uint32 BeginTimestamp;
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| 66 | uint32 EndTimestamp;
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| 67 | };
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| 68 |
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| 69 | static bool afs_decode_token(const char *string, char **cell,
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| 70 | DATA_BLOB *ticket, struct ClearToken *ct)
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| 71 | {
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| 72 | DATA_BLOB blob;
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| 73 | struct ClearToken result_ct;
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| 74 | char *saveptr;
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| 75 |
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| 76 | char *s = SMB_STRDUP(string);
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| 77 |
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| 78 | char *t;
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| 79 |
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| 80 | if ((t = strtok_r(s, "\n", &saveptr)) == NULL) {
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| 81 | DEBUG(10, ("strtok_r failed\n"));
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| 82 | return False;
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| 83 | }
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| 84 |
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| 85 | *cell = SMB_STRDUP(t);
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| 86 |
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| 87 | if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
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| 88 | DEBUG(10, ("strtok_r failed\n"));
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| 89 | return False;
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| 90 | }
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| 91 |
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| 92 | if (sscanf(t, "%u", &result_ct.AuthHandle) != 1) {
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| 93 | DEBUG(10, ("sscanf AuthHandle failed\n"));
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| 94 | return False;
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| 95 | }
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| 96 |
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| 97 | if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
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| 98 | DEBUG(10, ("strtok_r failed\n"));
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| 99 | return False;
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| 100 | }
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| 101 |
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| 102 | blob = base64_decode_data_blob(t);
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| 103 |
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| 104 | if ( (blob.data == NULL) ||
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| 105 | (blob.length != sizeof(result_ct.HandShakeKey) )) {
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| 106 | DEBUG(10, ("invalid key: %x/%d\n", (uint32)blob.data,
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| 107 | blob.length));
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| 108 | return False;
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| 109 | }
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| 110 |
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| 111 | memcpy(result_ct.HandShakeKey, blob.data, blob.length);
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| 112 |
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| 113 | data_blob_free(&blob);
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| 114 |
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| 115 | if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
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| 116 | DEBUG(10, ("strtok_r failed\n"));
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| 117 | return False;
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| 118 | }
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| 119 |
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| 120 | if (sscanf(t, "%u", &result_ct.ViceId) != 1) {
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| 121 | DEBUG(10, ("sscanf ViceId failed\n"));
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| 122 | return False;
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| 123 | }
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| 124 |
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| 125 | if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
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| 126 | DEBUG(10, ("strtok_r failed\n"));
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| 127 | return False;
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| 128 | }
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| 129 |
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| 130 | if (sscanf(t, "%u", &result_ct.BeginTimestamp) != 1) {
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| 131 | DEBUG(10, ("sscanf BeginTimestamp failed\n"));
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| 132 | return False;
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| 133 | }
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| 134 |
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| 135 | if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
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| 136 | DEBUG(10, ("strtok_r failed\n"));
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| 137 | return False;
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| 138 | }
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| 139 |
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| 140 | if (sscanf(t, "%u", &result_ct.EndTimestamp) != 1) {
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| 141 | DEBUG(10, ("sscanf EndTimestamp failed\n"));
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| 142 | return False;
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| 143 | }
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| 144 |
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