negotiate_kerberos.h
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1 /*
2  * Copyright (C) 1996-2019 The Squid Software Foundation and contributors
3  *
4  * Squid software is distributed under GPLv2+ license and includes
5  * contributions from numerous individuals and organizations.
6  * Please see the COPYING and CONTRIBUTORS files for details.
7  */
8 
9 /*
10  * -----------------------------------------------------------------------------
11  *
12  * Author: Markus Moeller (markus_moeller at compuserve.com)
13  *
14  * Copyright (C) 2013 Markus Moeller. All rights reserved.
15  *
16  * This program is free software; you can redistribute it and/or modify
17  * it under the terms of the GNU General Public License as published by
18  * the Free Software Foundation; either version 2 of the License, or
19  * (at your option) any later version.
20  *
21  * This program is distributed in the hope that it will be useful,
22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24  * GNU General Public License for more details.
25  *
26  * You should have received a copy of the GNU General Public License
27  * along with this program; if not, write to the Free Software
28  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
29  *
30  * As a special exemption, M Moeller gives permission to link this program
31  * with MIT, Heimdal or other GSS/Kerberos libraries, and distribute
32  * the resulting executable, without including the source code for
33  * the Libraries in the source distribution.
34  *
35  * -----------------------------------------------------------------------------
36  */
37 
38 #include <cstring>
39 #include <ctime>
40 #if HAVE_NETDB_H
41 #include <netdb.h>
42 #endif
43 #if HAVE_UNISTD_H
44 #include <unistd.h>
45 #endif
46 
47 #include "base64.h"
48 #include "util.h"
49 
50 #if USE_APPLE_KRB5
51 #define KERBEROS_APPLE_DEPRECATED(x)
52 #define GSSKRB_APPLE_DEPRECATED(x)
53 #endif
54 
55 #if HAVE_KRB5_H
56 #if HAVE_BROKEN_SOLARIS_KRB5_H
57 #warn "Warning! You have a broken Solaris <krb5.h> system header"
58 #warn "http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6837512"
59 #if defined(__cplusplus)
60 #define KRB5INT_BEGIN_DECLS extern "C" {
61 #define KRB5INT_END_DECLS
62 KRB5INT_BEGIN_DECLS
63 #endif
64 #endif /* HAVE_BROKEN_SOLARIS_KRB5_H */
65 #if HAVE_BROKEN_HEIMDAL_KRB5_H
66 extern "C" {
67 #include <krb5.h>
68 }
69 #else
70 #include <krb5.h>
71 #endif
72 #endif /* HAVE_KRB5_H */
73 
74 #if USE_HEIMDAL_KRB5
75 #if HAVE_GSSAPI_GSSAPI_H
76 #include <gssapi/gssapi.h>
77 #elif HAVE_GSSAPI_H
78 #include <gssapi.h>
79 #endif
80 #if HAVE_GSSAPI_GSSAPI_KRB5_H
81 #include <gssapi/gssapi_krb5.h>
82 #endif
83 #elif USE_GNUGSS
84 #if HAVE_GSS_H
85 #include <gss.h>
86 #endif
87 #else
88 #if HAVE_GSSAPI_GSSAPI_H
89 #include <gssapi/gssapi.h>
90 #elif HAVE_GSSAPI_H
91 #include <gssapi.h>
92 #endif
93 #if HAVE_GSSAPI_GSSAPI_KRB5_H
94 #include <gssapi/gssapi_krb5.h>
95 #endif
96 #if HAVE_GSSAPI_GSSAPI_GENERIC_H
97 #include <gssapi/gssapi_generic.h>
98 #endif
99 #if HAVE_GSSAPI_GSSAPI_EXT_H
100 #include <gssapi/gssapi_ext.h>
101 #endif
102 #endif
103 
104 #ifndef gss_nt_service_name
105 #define gss_nt_service_name GSS_C_NT_HOSTBASED_SERVICE
106 #endif
107 
108 #define PROGRAM "negotiate_kerberos_auth"
109 
110 #ifndef MAX_AUTHTOKEN_LEN
111 #define MAX_AUTHTOKEN_LEN 65535
112 #endif
113 #ifndef SQUID_KERB_AUTH_VERSION
114 #define SQUID_KERB_AUTH_VERSION "3.1.0sq"
115 #endif
116 
117 char *gethost_name(void);
118 
119 static const unsigned char ntlmProtocol[] = {'N', 'T', 'L', 'M', 'S', 'S', 'P', 0};
120 
121 inline const char *
123 {
124  struct timeval now;
125  static time_t last_t = 0;
126  static char buf[128];
127 
128  gettimeofday(&now, NULL);
129  if (now.tv_sec != last_t) {
130  struct tm *tm;
131  tm = localtime((time_t *) & now.tv_sec);
132  strftime(buf, 127, "%Y/%m/%d %H:%M:%S", tm);
133  last_t = now.tv_sec;
134  }
135  return buf;
136 }
137 
138 int check_gss_err(OM_uint32 major_status, OM_uint32 minor_status,
139  const char *function, int log, int sout);
140 
141 char *gethost_name(void);
142 
143 #if (HAVE_GSSKRB5_EXTRACT_AUTHZ_DATA_FROM_SEC_CONTEXT || HAVE_GSS_MAP_NAME_TO_ANY) && HAVE_KRB5_PAC
144 #define HAVE_PAC_SUPPORT 1
145 #define MAX_PAC_GROUP_SIZE 200*60
146 typedef struct {
147  uint16_t length;
148  uint16_t maxlength;
149  uint32_t pointer;
150 } RPC_UNICODE_STRING;
151 
152 void align(int n);
153 void getustr(RPC_UNICODE_STRING *string);
154 char **getgids(char **Rids, uint32_t GroupIds, uint32_t GroupCount);
155 char *getdomaingids(char *ad_groups, uint32_t DomainLogonId, char **Rids, uint32_t GroupCount);
156 char *getextrasids(char *ad_groups, uint32_t ExtraSids, uint32_t SidCount);
157 uint64_t get6byt_be(void);
158 uint32_t get4byt(void);
159 uint16_t get2byt(void);
160 uint8_t get1byt(void);
161 char *xstrcpy( char *src, const char*dst);
162 char *xstrcat( char *src, const char*dst);
163 int checkustr(RPC_UNICODE_STRING *string);
164 char *get_ad_groups(char *ad_groups, krb5_context context, krb5_pac pac);
165 #else
166 #define HAVE_PAC_SUPPORT 0
167 #endif
168 int check_k5_err(krb5_context context, const char *msg, krb5_error_code code);
169 
void log(char *format,...)
int check_k5_err(krb5_context context, const char *msg, krb5_error_code code)
const char * LogTime()
char * gethost_name(void)
unsigned char code
Definition: html_quote.c:20
void const char * buf
Definition: stub_helper.cc:16
static const unsigned char ntlmProtocol[]
int check_gss_err(OM_uint32 major_status, OM_uint32 minor_status, const char *function, int log, int sout)
#define NULL
Definition: types.h:166

 

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