diff options
Diffstat (limited to 'lib/curl_http_negotiate_sspi.c')
-rw-r--r-- | lib/curl_http_negotiate_sspi.c | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/lib/curl_http_negotiate_sspi.c b/lib/curl_http_negotiate_sspi.c deleted file mode 100644 index d82b27110..000000000 --- a/lib/curl_http_negotiate_sspi.c +++ /dev/null @@ -1,308 +0,0 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms - * are also available at http://curl.haxx.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -#include "curl_setup.h" - -#ifdef USE_WINDOWS_SSPI - -#ifndef CURL_DISABLE_HTTP - -#include "curl_urldata.h" -#include "curl_sendf.h" -#include "curl_rawstr.h" -#include "curl_warnless.h" -#include "curl_base64.h" -#include "curl_http_negotiate.h" -#include "curl_memory.h" -#include "curl_multibyte.h" - -#define _MPRINTF_REPLACE /* use our functions only */ -#include <curl/mprintf.h> - -/* The last #include file should be: */ -#include "curl_memdebug.h" - -static int -get_gss_name(struct connectdata *conn, bool proxy, - struct negotiatedata *neg_ctx) -{ - const char* service; - size_t length; - - if(proxy && !conn->proxy.name) - /* proxy auth requested but no given proxy name, error out! */ - return -1; - - /* GSSAPI implementation by Globus (known as GSI) requires the name to be - of form "<service>/<fqdn>" instead of <service>@<fqdn> (ie. slash instead - of at-sign). Also GSI servers are often identified as 'host' not 'khttp'. - Change following lines if you want to use GSI */ - - /* IIS uses the <service>@<fqdn> form but uses 'http' as the service name, - and SSPI then generates an NTLM token. When using <service>/<fqdn> a - Kerberos token is generated. */ - - if(neg_ctx->gss) - service = "KHTTP"; - else - service = "HTTP"; - - length = strlen(service) + 1 + strlen(proxy ? conn->proxy.name : - conn->host.name) + 1; - if(length + 1 > sizeof(neg_ctx->server_name)) - return EMSGSIZE; - - snprintf(neg_ctx->server_name, sizeof(neg_ctx->server_name), "%s/%s", - service, proxy ? conn->proxy.name : conn->host.name); - - return 0; -} - -/* returning zero (0) means success, everything else is treated as "failure" - with no care exactly what the failure was */ -int Curl_input_negotiate(struct connectdata *conn, bool proxy, - const char *header) -{ - struct negotiatedata *neg_ctx = proxy?&conn->data->state.proxyneg: - &conn->data->state.negotiate; - BYTE *input_token = 0; - SecBufferDesc out_buff_desc; - SecBuffer out_sec_buff; - SecBufferDesc in_buff_desc; - SecBuffer in_sec_buff; - unsigned long context_attributes; - TimeStamp lifetime; - TCHAR *sname; - int ret; - size_t len = 0, input_token_len = 0; - bool gss = FALSE; - const char* protocol; - CURLcode error; - - while(*header && ISSPACE(*header)) - header++; - - if(checkprefix("GSS-Negotiate", header)) { - protocol = "GSS-Negotiate"; - gss = TRUE; - } - else if(checkprefix("Negotiate", header)) { - protocol = "Negotiate"; - gss = FALSE; - } - else - return -1; - - if(neg_ctx->context) { - if(neg_ctx->gss != gss) { - return -1; - } - } - else { - neg_ctx->protocol = protocol; - neg_ctx->gss = gss; - } - - if(neg_ctx->context && neg_ctx->status == SEC_E_OK) { - /* We finished successfully our part of authentication, but server - * rejected it (since we're again here). Exit with an error since we - * can't invent anything better */ - Curl_cleanup_negotiate(conn->data); - return -1; - } - - if(0 == strlen(neg_ctx->server_name)) { - ret = get_gss_name(conn, proxy, neg_ctx); - if(ret) - return ret; - } - - if(!neg_ctx->output_token) { - PSecPkgInfo SecurityPackage; - ret = s_pSecFn->QuerySecurityPackageInfo((TCHAR *) TEXT("Negotiate"), - &SecurityPackage); - if(ret != SEC_E_OK) - return -1; - - /* Allocate input and output buffers according to the max token size - as indicated by the security package */ - neg_ctx->max_token_length = SecurityPackage->cbMaxToken; - neg_ctx->output_token = malloc(neg_ctx->max_token_length); - s_pSecFn->FreeContextBuffer(SecurityPackage); - } - - /* Obtain the input token, if any */ - header += strlen(neg_ctx->protocol); - while(*header && ISSPACE(*header)) - header++; - - len = strlen(header); - if(!len) { - /* first call in a new negotation, we have to acquire credentials, - and allocate memory for the context */ - - neg_ctx->credentials = malloc(sizeof(CredHandle)); - neg_ctx->context = malloc(sizeof(CtxtHandle)); - - if(!neg_ctx->credentials || !neg_ctx->context) - return -1; - - neg_ctx->status = - s_pSecFn->AcquireCredentialsHandle(NULL, - (TCHAR *) TEXT("Negotiate"), - SECPKG_CRED_OUTBOUND, NULL, NULL, - NULL, NULL, neg_ctx->credentials, - &lifetime); - if(neg_ctx->status != SEC_E_OK) - return -1; - } - else { - input_token = malloc(neg_ctx->max_token_length); - if(!input_token) - return -1; - - error = Curl_base64_decode(header, - (unsigned char **)&input_token, - &input_token_len); - if(error || input_token_len == 0) - return -1; - } - - /* prepare the output buffers, and input buffers if present */ - out_buff_desc.ulVersion = 0; - out_buff_desc.cBuffers = 1; - out_buff_desc.pBuffers = &out_sec_buff; - - out_sec_buff.cbBuffer = curlx_uztoul(neg_ctx->max_token_length); - out_sec_buff.BufferType = SECBUFFER_TOKEN; - out_sec_buff.pvBuffer = neg_ctx->output_token; - - - if(input_token) { - in_buff_desc.ulVersion = 0; - in_buff_desc.cBuffers = 1; - in_buff_desc.pBuffers = &in_sec_buff; - - in_sec_buff.cbBuffer = curlx_uztoul(input_token_len); - in_sec_buff.BufferType = SECBUFFER_TOKEN; - in_sec_buff.pvBuffer = input_token; - } - - sname = Curl_convert_UTF8_to_tchar(neg_ctx->server_name); - if(!sname) - return CURLE_OUT_OF_MEMORY; - - neg_ctx->status = s_pSecFn->InitializeSecurityContext( - neg_ctx->credentials, - input_token ? neg_ctx->context : 0, - sname, - ISC_REQ_CONFIDENTIALITY, - 0, - SECURITY_NATIVE_DREP, - input_token ? &in_buff_desc : 0, - 0, - neg_ctx->context, - &out_buff_desc, - &context_attributes, - &lifetime); - - Curl_unicodefree(sname); - - if(GSS_ERROR(neg_ctx->status)) - return -1; - - if(neg_ctx->status == SEC_I_COMPLETE_NEEDED || - neg_ctx->status == SEC_I_COMPLETE_AND_CONTINUE) { - neg_ctx->status = s_pSecFn->CompleteAuthToken(neg_ctx->context, - &out_buff_desc); - if(GSS_ERROR(neg_ctx->status)) - return -1; - } - - neg_ctx->output_token_length = out_sec_buff.cbBuffer; - - return 0; -} - - -CURLcode Curl_output_negotiate(struct connectdata *conn, bool proxy) -{ - struct negotiatedata *neg_ctx = proxy?&conn->data->state.proxyneg: - &conn->data->state.negotiate; - char *encoded = NULL; - size_t len = 0; - char *userp; - CURLcode error; - - error = Curl_base64_encode(conn->data, - (const char*)neg_ctx->output_token, - neg_ctx->output_token_length, - &encoded, &len); - if(error) - return error; - - if(len == 0) - return CURLE_REMOTE_ACCESS_DENIED; - - userp = aprintf("%sAuthorization: %s %s\r\n", proxy ? "Proxy-" : "", - neg_ctx->protocol, encoded); - - if(proxy) - conn->allocptr.proxyuserpwd = userp; - else - conn->allocptr.userpwd = userp; - free(encoded); - Curl_cleanup_negotiate (conn->data); - return (userp == NULL) ? CURLE_OUT_OF_MEMORY : CURLE_OK; -} - -static void cleanup(struct negotiatedata *neg_ctx) -{ - if(neg_ctx->context) { - s_pSecFn->DeleteSecurityContext(neg_ctx->context); - free(neg_ctx->context); - neg_ctx->context = 0; - } - - if(neg_ctx->credentials) { - s_pSecFn->FreeCredentialsHandle(neg_ctx->credentials); - free(neg_ctx->credentials); - neg_ctx->credentials = 0; - } - - if(neg_ctx->output_token) { - free(neg_ctx->output_token); - neg_ctx->output_token = 0; - } - - neg_ctx->max_token_length = 0; -} - -void Curl_cleanup_negotiate(struct SessionHandle *data) -{ - cleanup(&data->state.negotiate); - cleanup(&data->state.proxyneg); -} - - -#endif -#endif |