1b69122810
Various parts of the libcurl source code build a SPN for inclusion in authentication data. This information is either used by our own native generation routines or passed to authentication functions in third-party libraries such as SSPI. However, some of these instances use fixed buffers rather than dynamically allocated ones and not all of those that should, convert to wide character strings in Unicode builds. Implemented a common function that generates a SPN and performs the wide character conversion where necessary.
134 lines
5.9 KiB
C
134 lines
5.9 KiB
C
#ifndef HEADER_CURL_SASL_H
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#define HEADER_CURL_SASL_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 2012 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include <curl/curl.h>
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struct SessionHandle;
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struct connectdata;
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struct ntlmdata;
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/* Authentication mechanism values */
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#define SASL_AUTH_NONE 0
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#define SASL_AUTH_ANY ~0U
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/* Authentication mechanism flags */
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#define SASL_MECH_LOGIN (1 << 0)
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#define SASL_MECH_PLAIN (1 << 1)
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#define SASL_MECH_CRAM_MD5 (1 << 2)
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#define SASL_MECH_DIGEST_MD5 (1 << 3)
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#define SASL_MECH_GSSAPI (1 << 4)
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#define SASL_MECH_EXTERNAL (1 << 5)
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#define SASL_MECH_NTLM (1 << 6)
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#define SASL_MECH_XOAUTH2 (1 << 7)
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/* Authentication mechanism strings */
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#define SASL_MECH_STRING_LOGIN "LOGIN"
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#define SASL_MECH_STRING_PLAIN "PLAIN"
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#define SASL_MECH_STRING_CRAM_MD5 "CRAM-MD5"
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#define SASL_MECH_STRING_DIGEST_MD5 "DIGEST-MD5"
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#define SASL_MECH_STRING_GSSAPI "GSSAPI"
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#define SASL_MECH_STRING_EXTERNAL "EXTERNAL"
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#define SASL_MECH_STRING_NTLM "NTLM"
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#define SASL_MECH_STRING_XOAUTH2 "XOAUTH2"
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/* This is used to test whether the line starts with the given mechanism */
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#define sasl_mech_equal(line, wordlen, mech) \
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(wordlen == (sizeof(mech) - 1) / sizeof(char) && \
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!memcmp(line, mech, wordlen))
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/* This is used to build a SPN string */
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#if !defined(USE_WINDOWS_SSPI)
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char *Curl_sasl_build_spn(const char *service, const char *instance);
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#else
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TCHAR *Curl_sasl_build_spn(const char *service, const char *instance);
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#endif
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/* This is used to generate a base64 encoded PLAIN authentication message */
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CURLcode Curl_sasl_create_plain_message(struct SessionHandle *data,
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const char *userp,
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const char *passwdp,
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char **outptr, size_t *outlen);
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/* This is used to generate a base64 encoded LOGIN authentication message
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containing either the user name or password details */
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CURLcode Curl_sasl_create_login_message(struct SessionHandle *data,
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const char *valuep, char **outptr,
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size_t *outlen);
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#ifndef CURL_DISABLE_CRYPTO_AUTH
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/* This is used to decode a base64 encoded CRAM-MD5 challange message */
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CURLcode Curl_sasl_decode_cram_md5_message(const char *chlg64, char **outptr,
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size_t *outlen);
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/* This is used to generate a base64 encoded CRAM-MD5 response message */
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CURLcode Curl_sasl_create_cram_md5_message(struct SessionHandle *data,
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const char *chlg,
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const char *user,
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const char *passwdp,
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char **outptr, size_t *outlen);
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/* This is used to generate a base64 encoded DIGEST-MD5 response message */
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CURLcode Curl_sasl_create_digest_md5_message(struct SessionHandle *data,
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const char *chlg64,
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const char *userp,
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const char *passwdp,
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const char *service,
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char **outptr, size_t *outlen);
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#endif
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#ifdef USE_NTLM
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/* This is used to generate a base64 encoded NTLM type-1 message */
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CURLcode Curl_sasl_create_ntlm_type1_message(const char *userp,
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const char *passwdp,
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struct ntlmdata *ntlm,
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char **outptr,
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size_t *outlen);
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/* This is used to decode a base64 encoded NTLM type-2 message */
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CURLcode Curl_sasl_decode_ntlm_type2_message(struct SessionHandle *data,
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const char *type2msg,
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struct ntlmdata *ntlm);
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/* This is used to generate a base64 encoded NTLM type-3 message */
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CURLcode Curl_sasl_create_ntlm_type3_message(struct SessionHandle *data,
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const char *userp,
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const char *passwdp,
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struct ntlmdata *ntlm,
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char **outptr, size_t *outlen);
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#endif /* USE_NTLM */
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/* This is used to generate a base64 encoded XOAUTH2 authentication message
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containing the user name and bearer token */
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CURLcode Curl_sasl_create_xoauth2_message(struct SessionHandle *data,
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const char *user,
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const char *bearer,
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char **outptr, size_t *outlen);
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/* This is used to cleanup any libraries or curl modules used by the sasl
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functions */
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void Curl_sasl_cleanup(struct connectdata *conn, unsigned int authused);
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#endif /* HEADER_CURL_SASL_H */
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