358 lines
13 KiB
C
358 lines
13 KiB
C
#ifndef HEADER_CURL_VAUTH_H
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#define HEADER_CURL_VAUTH_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) Steve Holme, <steve_holme@hotmail.com>.
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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 https://curl.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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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include <curl/curl.h>
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#include "../bufref.h"
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#include "../curlx/dynbuf.h"
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struct Curl_easy;
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struct connectdata;
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#ifndef CURL_DISABLE_DIGEST_AUTH
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struct digestdata;
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#endif
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#ifdef USE_NTLM
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struct ntlmdata;
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#endif
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#if (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)) && defined(USE_SPNEGO)
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struct negotiatedata;
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#endif
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#ifdef USE_GSASL
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struct gsasldata;
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#endif
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#ifdef USE_WINDOWS_SSPI
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#include "../curl_sspi.h"
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#define GSS_ERROR(status) ((status) & 0x80000000)
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#endif
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/*
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* Curl_auth_allowed_to_host() tells if authentication, cookies or other
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* "sensitive data" can (still) be sent to this host.
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*/
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bool Curl_auth_allowed_to_host(struct Curl_easy *data);
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/* This is used to build an SPN string */
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#ifndef USE_WINDOWS_SSPI
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char *Curl_auth_build_spn(const char *service, const char *host,
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const char *realm);
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#else
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TCHAR *Curl_auth_build_spn(const char *service, const char *host,
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const char *realm);
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#endif
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/* This is used to test if the user contains a Windows domain name */
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bool Curl_auth_user_contains_domain(const char *user);
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/* This is used to generate a PLAIN cleartext message */
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CURLcode Curl_auth_create_plain_message(const char *authzid,
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const char *authcid,
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const char *passwd,
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struct bufref *out);
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/* This is used to generate a LOGIN cleartext message */
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void Curl_auth_create_login_message(const char *value, struct bufref *out);
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/* This is used to generate an EXTERNAL cleartext message */
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void Curl_auth_create_external_message(const char *user, struct bufref *out);
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#ifndef CURL_DISABLE_DIGEST_AUTH
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/* This is used to generate a CRAM-MD5 response message */
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CURLcode Curl_auth_create_cram_md5_message(const struct bufref *chlg,
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const char *userp,
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const char *passwdp,
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struct bufref *out);
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/* This is used to evaluate if DIGEST is supported */
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bool Curl_auth_is_digest_supported(void);
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/* This is used to generate a base64 encoded DIGEST-MD5 response message */
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CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data,
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const struct bufref *chlg,
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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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struct bufref *out);
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/* This is used to decode an HTTP DIGEST challenge message */
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CURLcode Curl_auth_decode_digest_http_message(const char *chlg,
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struct digestdata *digest);
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/* This is used to generate an HTTP DIGEST response message */
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CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data,
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const char *userp,
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const char *passwdp,
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const unsigned char *request,
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const unsigned char *uri,
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struct digestdata *digest,
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char **outptr, size_t *outlen);
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/* This is used to clean up the digest specific data */
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void Curl_auth_digest_cleanup(struct digestdata *digest);
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#else
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#define Curl_auth_is_digest_supported() FALSE
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#endif /* !CURL_DISABLE_DIGEST_AUTH */
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#ifdef USE_GSASL
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/* meta key for storing GSASL meta at connection */
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#define CURL_META_GSASL_CONN "meta:auth:gsasl:conn"
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#include <gsasl.h>
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struct gsasldata {
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Gsasl *ctx;
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Gsasl_session *client;
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};
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struct gsasldata *Curl_auth_gsasl_get(struct connectdata *conn);
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/* This is used to evaluate if MECH is supported by gsasl */
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bool Curl_auth_gsasl_is_supported(struct Curl_easy *data,
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const char *mech,
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struct gsasldata *gsasl);
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/* This is used to start a gsasl method */
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CURLcode Curl_auth_gsasl_start(struct Curl_easy *data,
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const char *userp,
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const char *passwdp,
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struct gsasldata *gsasl);
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/* This is used to process and generate a new SASL token */
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CURLcode Curl_auth_gsasl_token(struct Curl_easy *data,
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const struct bufref *chlg,
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struct gsasldata *gsasl,
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struct bufref *out);
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/* This is used to clean up the gsasl specific data */
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void Curl_auth_gsasl_cleanup(struct gsasldata *digest);
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#endif
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#ifdef USE_NTLM
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/* meta key for storing NTML meta at connection */
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#define CURL_META_NTLM_CONN "meta:auth:ntml:conn"
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/* meta key for storing NTML-PROXY meta at connection */
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#define CURL_META_NTLM_PROXY_CONN "meta:auth:ntml-proxy:conn"
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struct ntlmdata {
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#ifdef USE_WINDOWS_SSPI
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/* The sslContext is used for the Schannel bindings. The
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* api is available on the Windows 7 SDK and later.
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*/
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#ifdef SECPKG_ATTR_ENDPOINT_BINDINGS
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CtxtHandle *sslContext;
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#endif
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CredHandle *credentials;
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CtxtHandle *context;
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SEC_WINNT_AUTH_IDENTITY identity;
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SEC_WINNT_AUTH_IDENTITY *p_identity;
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size_t token_max;
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BYTE *output_token;
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BYTE *input_token;
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size_t input_token_len;
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TCHAR *spn;
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#else
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unsigned int flags;
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unsigned char nonce[8];
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unsigned int target_info_len;
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void *target_info; /* TargetInfo received in the NTLM type-2 message */
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#endif
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};
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/* This is used to evaluate if NTLM is supported */
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bool Curl_auth_is_ntlm_supported(void);
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struct ntlmdata *Curl_auth_ntlm_get(struct connectdata *conn, bool proxy);
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void Curl_auth_ntlm_remove(struct connectdata *conn, bool proxy);
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/* This is used to clean up the NTLM specific data */
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void Curl_auth_cleanup_ntlm(struct ntlmdata *ntlm);
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/* This is used to generate a base64 encoded NTLM type-1 message */
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CURLcode Curl_auth_create_ntlm_type1_message(struct Curl_easy *data,
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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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const char *host,
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struct ntlmdata *ntlm,
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struct bufref *out);
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/* This is used to decode a base64 encoded NTLM type-2 message */
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CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data,
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const struct bufref *type2,
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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_auth_create_ntlm_type3_message(struct Curl_easy *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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struct bufref *out);
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#else
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#define Curl_auth_is_ntlm_supported() FALSE
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#endif /* USE_NTLM */
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/* This is used to generate a base64 encoded OAuth 2.0 message */
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CURLcode Curl_auth_create_oauth_bearer_message(const char *user,
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const char *host,
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const long port,
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const char *bearer,
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struct bufref *out);
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/* This is used to generate a base64 encoded XOAuth 2.0 message */
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CURLcode Curl_auth_create_xoauth_bearer_message(const char *user,
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const char *bearer,
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struct bufref *out);
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#ifdef USE_KERBEROS5
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#ifdef HAVE_GSSAPI
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# ifdef HAVE_GSSGNU
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# include <gss.h>
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# else
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# include <gssapi/gssapi.h>
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# endif
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#endif
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/* meta key for storing KRB5 meta at connection */
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#define CURL_META_KRB5_CONN "meta:auth:krb5:conn"
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struct kerberos5data {
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#ifdef USE_WINDOWS_SSPI
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CredHandle *credentials;
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CtxtHandle *context;
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TCHAR *spn;
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SEC_WINNT_AUTH_IDENTITY identity;
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SEC_WINNT_AUTH_IDENTITY *p_identity;
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size_t token_max;
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BYTE *output_token;
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#else
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gss_ctx_id_t context;
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gss_name_t spn;
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#endif
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};
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struct kerberos5data *Curl_auth_krb5_get(struct connectdata *conn);
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/* This is used to evaluate if GSSAPI (Kerberos V5) is supported */
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bool Curl_auth_is_gssapi_supported(void);
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/* This is used to generate a base64 encoded GSSAPI (Kerberos V5) user token
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message */
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CURLcode Curl_auth_create_gssapi_user_message(struct Curl_easy *data,
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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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const char *host,
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const bool mutual,
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const struct bufref *chlg,
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struct kerberos5data *krb5,
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struct bufref *out);
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/* This is used to generate a base64 encoded GSSAPI (Kerberos V5) security
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token message */
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CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data,
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const char *authzid,
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const struct bufref *chlg,
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struct kerberos5data *krb5,
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struct bufref *out);
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/* This is used to clean up the GSSAPI specific data */
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void Curl_auth_cleanup_gssapi(struct kerberos5data *krb5);
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#else
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#define Curl_auth_is_gssapi_supported() FALSE
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#endif /* USE_KERBEROS5 */
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#ifdef USE_SPNEGO
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bool Curl_auth_is_spnego_supported(void);
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/* meta key for storing NEGO meta at connection */
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#define CURL_META_NEGO_CONN "meta:auth:nego:conn"
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/* meta key for storing NEGO PROXY meta at connection */
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#define CURL_META_NEGO_PROXY_CONN "meta:auth:nego-proxy:conn"
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/* Struct used for Negotiate (SPNEGO) authentication */
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struct negotiatedata {
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#ifdef HAVE_GSSAPI
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OM_uint32 status;
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gss_ctx_id_t context;
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gss_name_t spn;
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gss_buffer_desc output_token;
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#ifdef CURL_GSSAPI_HAS_CHANNEL_BINDING
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struct dynbuf channel_binding_data;
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#endif
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#else
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#ifdef USE_WINDOWS_SSPI
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#ifdef SECPKG_ATTR_ENDPOINT_BINDINGS
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CtxtHandle *sslContext;
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#endif
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SECURITY_STATUS status;
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CredHandle *credentials;
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CtxtHandle *context;
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SEC_WINNT_AUTH_IDENTITY identity;
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SEC_WINNT_AUTH_IDENTITY *p_identity;
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TCHAR *spn;
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size_t token_max;
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BYTE *output_token;
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size_t output_token_length;
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#endif
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#endif
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BIT(noauthpersist);
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BIT(havenoauthpersist);
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BIT(havenegdata);
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BIT(havemultiplerequests);
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};
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struct negotiatedata *
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Curl_auth_nego_get(struct connectdata *conn, bool proxy);
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/* This is used to decode a base64 encoded SPNEGO (Negotiate) challenge
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message */
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CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data,
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const char *user,
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const char *password,
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const char *service,
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const char *host,
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const char *chlg64,
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struct negotiatedata *nego);
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/* This is used to generate a base64 encoded SPNEGO (Negotiate) response
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message */
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CURLcode Curl_auth_create_spnego_message(struct negotiatedata *nego,
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char **outptr, size_t *outlen);
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/* This is used to clean up the SPNEGO specific data */
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void Curl_auth_cleanup_spnego(struct negotiatedata *nego);
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#endif /* USE_SPNEGO */
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#endif /* HEADER_CURL_VAUTH_H */
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