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- /***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 2012 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
- * Copyright (C) 2012, 2011, Markus Moeller, <markus_moeller@compuserve.com>
- *
- * 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 https://curl.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.
- *
- * SPDX-License-Identifier: curl
- *
- ***************************************************************************/
- #include "curl_setup.h"
- #if defined(USE_WINDOWS_SSPI) && !defined(CURL_DISABLE_PROXY)
- #include "urldata.h"
- #include "sendf.h"
- #include "connect.h"
- #include "strerror.h"
- #include "timeval.h"
- #include "socks.h"
- #include "curl_sspi.h"
- #include "curl_multibyte.h"
- #include "warnless.h"
- #include "strdup.h"
- /* The last 3 #include files should be in this order */
- #include "curl_printf.h"
- #include "curl_memory.h"
- #include "memdebug.h"
- /*
- * Helper sspi error functions.
- */
- static int check_sspi_err(struct Curl_easy *data,
- SECURITY_STATUS status,
- const char *function)
- {
- if(status != SEC_E_OK &&
- status != SEC_I_COMPLETE_AND_CONTINUE &&
- status != SEC_I_COMPLETE_NEEDED &&
- status != SEC_I_CONTINUE_NEEDED) {
- char buffer[STRERROR_LEN];
- failf(data, "SSPI error: %s failed: %s", function,
- Curl_sspi_strerror(status, buffer, sizeof(buffer)));
- return 1;
- }
- return 0;
- }
- /* This is the SSPI-using version of this function */
- CURLcode Curl_SOCKS5_gssapi_negotiate(int sockindex,
- struct Curl_easy *data)
- {
- struct connectdata *conn = data->conn;
- curl_socket_t sock = conn->sock[sockindex];
- CURLcode code;
- ssize_t actualread;
- ssize_t written;
- int result;
- /* Needs GSS-API authentication */
- SECURITY_STATUS status;
- unsigned long sspi_ret_flags = 0;
- unsigned char gss_enc;
- SecBuffer sspi_send_token, sspi_recv_token, sspi_w_token[3];
- SecBufferDesc input_desc, output_desc, wrap_desc;
- SecPkgContext_Sizes sspi_sizes;
- CredHandle cred_handle;
- CtxtHandle sspi_context;
- PCtxtHandle context_handle = NULL;
- SecPkgCredentials_Names names;
- TimeStamp expiry;
- char *service_name = NULL;
- unsigned short us_length;
- unsigned long qop;
- unsigned char socksreq[4]; /* room for GSS-API exchange header only */
- const char *service = data->set.str[STRING_PROXY_SERVICE_NAME] ?
- data->set.str[STRING_PROXY_SERVICE_NAME] : "rcmd";
- const size_t service_length = strlen(service);
- /* GSS-API request looks like
- * +----+------+-----+----------------+
- * |VER | MTYP | LEN | TOKEN |
- * +----+------+----------------------+
- * | 1 | 1 | 2 | up to 2^16 - 1 |
- * +----+------+-----+----------------+
- */
- /* prepare service name */
- if(strchr(service, '/')) {
- service_name = strdup(service);
- if(!service_name)
- return CURLE_OUT_OF_MEMORY;
- }
- else {
- service_name = malloc(service_length +
- strlen(conn->socks_proxy.host.name) + 2);
- if(!service_name)
- return CURLE_OUT_OF_MEMORY;
- msnprintf(service_name, service_length +
- strlen(conn->socks_proxy.host.name) + 2, "%s/%s",
- service, conn->socks_proxy.host.name);
- }
- input_desc.cBuffers = 1;
- input_desc.pBuffers = &sspi_recv_token;
- input_desc.ulVersion = SECBUFFER_VERSION;
- sspi_recv_token.BufferType = SECBUFFER_TOKEN;
- sspi_recv_token.cbBuffer = 0;
- sspi_recv_token.pvBuffer = NULL;
- output_desc.cBuffers = 1;
- output_desc.pBuffers = &sspi_send_token;
- output_desc.ulVersion = SECBUFFER_VERSION;
- sspi_send_token.BufferType = SECBUFFER_TOKEN;
- sspi_send_token.cbBuffer = 0;
- sspi_send_token.pvBuffer = NULL;
- wrap_desc.cBuffers = 3;
- wrap_desc.pBuffers = sspi_w_token;
- wrap_desc.ulVersion = SECBUFFER_VERSION;
- cred_handle.dwLower = 0;
- cred_handle.dwUpper = 0;
- status = s_pSecFn->AcquireCredentialsHandle(NULL,
- (TCHAR *) TEXT("Kerberos"),
- SECPKG_CRED_OUTBOUND,
- NULL,
- NULL,
- NULL,
- NULL,
- &cred_handle,
- &expiry);
- if(check_sspi_err(data, status, "AcquireCredentialsHandle")) {
- failf(data, "Failed to acquire credentials.");
- free(service_name);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- return CURLE_COULDNT_CONNECT;
- }
- (void)curlx_nonblock(sock, FALSE);
- /* As long as we need to keep sending some context info, and there's no */
- /* errors, keep sending it... */
- for(;;) {
- TCHAR *sname;
- sname = curlx_convert_UTF8_to_tchar(service_name);
- if(!sname)
- return CURLE_OUT_OF_MEMORY;
- status = s_pSecFn->InitializeSecurityContext(&cred_handle,
- context_handle,
- sname,
- ISC_REQ_MUTUAL_AUTH |
- ISC_REQ_ALLOCATE_MEMORY |
- ISC_REQ_CONFIDENTIALITY |
- ISC_REQ_REPLAY_DETECT,
- 0,
- SECURITY_NATIVE_DREP,
- &input_desc,
- 0,
- &sspi_context,
- &output_desc,
- &sspi_ret_flags,
- &expiry);
- curlx_unicodefree(sname);
- if(sspi_recv_token.pvBuffer) {
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
- sspi_recv_token.pvBuffer = NULL;
- sspi_recv_token.cbBuffer = 0;
- }
- if(check_sspi_err(data, status, "InitializeSecurityContext")) {
- free(service_name);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- if(sspi_recv_token.pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
- failf(data, "Failed to initialise security context.");
- return CURLE_COULDNT_CONNECT;
- }
- if(sspi_send_token.cbBuffer) {
- socksreq[0] = 1; /* GSS-API subnegotiation version */
- socksreq[1] = 1; /* authentication message type */
- us_length = htons((short)sspi_send_token.cbBuffer);
- memcpy(socksreq + 2, &us_length, sizeof(short));
- code = Curl_write_plain(data, sock, (char *)socksreq, 4, &written);
- if(code || (4 != written)) {
- failf(data, "Failed to send SSPI authentication request.");
- free(service_name);
- if(sspi_send_token.pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
- if(sspi_recv_token.pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- code = Curl_write_plain(data, sock, (char *)sspi_send_token.pvBuffer,
- sspi_send_token.cbBuffer, &written);
- if(code || (sspi_send_token.cbBuffer != (size_t)written)) {
- failf(data, "Failed to send SSPI authentication token.");
- free(service_name);
- if(sspi_send_token.pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
- if(sspi_recv_token.pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- }
- if(sspi_send_token.pvBuffer) {
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
- sspi_send_token.pvBuffer = NULL;
- }
- sspi_send_token.cbBuffer = 0;
- if(sspi_recv_token.pvBuffer) {
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
- sspi_recv_token.pvBuffer = NULL;
- }
- sspi_recv_token.cbBuffer = 0;
- if(status != SEC_I_CONTINUE_NEEDED)
- break;
- /* analyse response */
- /* GSS-API response looks like
- * +----+------+-----+----------------+
- * |VER | MTYP | LEN | TOKEN |
- * +----+------+----------------------+
- * | 1 | 1 | 2 | up to 2^16 - 1 |
- * +----+------+-----+----------------+
- */
- result = Curl_blockread_all(data, sock, (char *)socksreq, 4, &actualread);
- if(result || (actualread != 4)) {
- failf(data, "Failed to receive SSPI authentication response.");
- free(service_name);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- /* ignore the first (VER) byte */
- if(socksreq[1] == 255) { /* status / message type */
- failf(data, "User was rejected by the SOCKS5 server (%u %u).",
- (unsigned int)socksreq[0], (unsigned int)socksreq[1]);
- free(service_name);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- if(socksreq[1] != 1) { /* status / message type */
- failf(data, "Invalid SSPI authentication response type (%u %u).",
- (unsigned int)socksreq[0], (unsigned int)socksreq[1]);
- free(service_name);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- memcpy(&us_length, socksreq + 2, sizeof(short));
- us_length = ntohs(us_length);
- sspi_recv_token.cbBuffer = us_length;
- sspi_recv_token.pvBuffer = malloc(us_length);
- if(!sspi_recv_token.pvBuffer) {
- free(service_name);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_OUT_OF_MEMORY;
- }
- result = Curl_blockread_all(data, sock, (char *)sspi_recv_token.pvBuffer,
- sspi_recv_token.cbBuffer, &actualread);
- if(result || (actualread != us_length)) {
- failf(data, "Failed to receive SSPI authentication token.");
- free(service_name);
- if(sspi_recv_token.pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- context_handle = &sspi_context;
- }
- free(service_name);
- /* Everything is good so far, user was authenticated! */
- status = s_pSecFn->QueryCredentialsAttributes(&cred_handle,
- SECPKG_CRED_ATTR_NAMES,
- &names);
- s_pSecFn->FreeCredentialsHandle(&cred_handle);
- if(check_sspi_err(data, status, "QueryCredentialAttributes")) {
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- s_pSecFn->FreeContextBuffer(names.sUserName);
- failf(data, "Failed to determine user name.");
- return CURLE_COULDNT_CONNECT;
- }
- infof(data, "SOCKS5 server authenticated user %s with GSS-API.",
- names.sUserName);
- s_pSecFn->FreeContextBuffer(names.sUserName);
- /* Do encryption */
- socksreq[0] = 1; /* GSS-API subnegotiation version */
- socksreq[1] = 2; /* encryption message type */
- gss_enc = 0; /* no data protection */
- /* do confidentiality protection if supported */
- if(sspi_ret_flags & ISC_REQ_CONFIDENTIALITY)
- gss_enc = 2;
- /* else do integrity protection */
- else if(sspi_ret_flags & ISC_REQ_INTEGRITY)
- gss_enc = 1;
- infof(data, "SOCKS5 server supports GSS-API %s data protection.",
- (gss_enc == 0)?"no":((gss_enc == 1)?"integrity":"confidentiality") );
- /* force to no data protection, avoid encryption/decryption for now */
- gss_enc = 0;
- /*
- * Sending the encryption type in clear seems wrong. It should be
- * protected with gss_seal()/gss_wrap(). See RFC1961 extract below
- * The NEC reference implementations on which this is based is
- * therefore at fault
- *
- * +------+------+------+.......................+
- * + ver | mtyp | len | token |
- * +------+------+------+.......................+
- * + 0x01 | 0x02 | 0x02 | up to 2^16 - 1 octets |
- * +------+------+------+.......................+
- *
- * Where:
- *
- * - "ver" is the protocol version number, here 1 to represent the
- * first version of the SOCKS/GSS-API protocol
- *
- * - "mtyp" is the message type, here 2 to represent a protection
- * -level negotiation message
- *
- * - "len" is the length of the "token" field in octets
- *
- * - "token" is the GSS-API encapsulated protection level
- *
- * The token is produced by encapsulating an octet containing the
- * required protection level using gss_seal()/gss_wrap() with conf_req
- * set to FALSE. The token is verified using gss_unseal()/
- * gss_unwrap().
- *
- */
- if(data->set.socks5_gssapi_nec) {
- us_length = htons((short)1);
- memcpy(socksreq + 2, &us_length, sizeof(short));
- }
- else {
- status = s_pSecFn->QueryContextAttributes(&sspi_context,
- SECPKG_ATTR_SIZES,
- &sspi_sizes);
- if(check_sspi_err(data, status, "QueryContextAttributes")) {
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- failf(data, "Failed to query security context attributes.");
- return CURLE_COULDNT_CONNECT;
- }
- sspi_w_token[0].cbBuffer = sspi_sizes.cbSecurityTrailer;
- sspi_w_token[0].BufferType = SECBUFFER_TOKEN;
- sspi_w_token[0].pvBuffer = malloc(sspi_sizes.cbSecurityTrailer);
- if(!sspi_w_token[0].pvBuffer) {
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_OUT_OF_MEMORY;
- }
- sspi_w_token[1].cbBuffer = 1;
- sspi_w_token[1].pvBuffer = malloc(1);
- if(!sspi_w_token[1].pvBuffer) {
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_OUT_OF_MEMORY;
- }
- memcpy(sspi_w_token[1].pvBuffer, &gss_enc, 1);
- sspi_w_token[2].BufferType = SECBUFFER_PADDING;
- sspi_w_token[2].cbBuffer = sspi_sizes.cbBlockSize;
- sspi_w_token[2].pvBuffer = malloc(sspi_sizes.cbBlockSize);
- if(!sspi_w_token[2].pvBuffer) {
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_OUT_OF_MEMORY;
- }
- status = s_pSecFn->EncryptMessage(&sspi_context,
- KERB_WRAP_NO_ENCRYPT,
- &wrap_desc,
- 0);
- if(check_sspi_err(data, status, "EncryptMessage")) {
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[2].pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- failf(data, "Failed to query security context attributes.");
- return CURLE_COULDNT_CONNECT;
- }
- sspi_send_token.cbBuffer = sspi_w_token[0].cbBuffer
- + sspi_w_token[1].cbBuffer
- + sspi_w_token[2].cbBuffer;
- sspi_send_token.pvBuffer = malloc(sspi_send_token.cbBuffer);
- if(!sspi_send_token.pvBuffer) {
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[2].pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_OUT_OF_MEMORY;
- }
- memcpy(sspi_send_token.pvBuffer, sspi_w_token[0].pvBuffer,
- sspi_w_token[0].cbBuffer);
- memcpy((PUCHAR) sspi_send_token.pvBuffer +(int)sspi_w_token[0].cbBuffer,
- sspi_w_token[1].pvBuffer, sspi_w_token[1].cbBuffer);
- memcpy((PUCHAR) sspi_send_token.pvBuffer
- + sspi_w_token[0].cbBuffer
- + sspi_w_token[1].cbBuffer,
- sspi_w_token[2].pvBuffer, sspi_w_token[2].cbBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- sspi_w_token[0].pvBuffer = NULL;
- sspi_w_token[0].cbBuffer = 0;
- s_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
- sspi_w_token[1].pvBuffer = NULL;
- sspi_w_token[1].cbBuffer = 0;
- s_pSecFn->FreeContextBuffer(sspi_w_token[2].pvBuffer);
- sspi_w_token[2].pvBuffer = NULL;
- sspi_w_token[2].cbBuffer = 0;
- us_length = htons((short)sspi_send_token.cbBuffer);
- memcpy(socksreq + 2, &us_length, sizeof(short));
- }
- code = Curl_write_plain(data, sock, (char *)socksreq, 4, &written);
- if(code || (4 != written)) {
- failf(data, "Failed to send SSPI encryption request.");
- if(sspi_send_token.pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- if(data->set.socks5_gssapi_nec) {
- memcpy(socksreq, &gss_enc, 1);
- code = Curl_write_plain(data, sock, (char *)socksreq, 1, &written);
- if(code || (1 != written)) {
- failf(data, "Failed to send SSPI encryption type.");
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- }
- else {
- code = Curl_write_plain(data, sock, (char *)sspi_send_token.pvBuffer,
- sspi_send_token.cbBuffer, &written);
- if(code || (sspi_send_token.cbBuffer != (size_t)written)) {
- failf(data, "Failed to send SSPI encryption type.");
- if(sspi_send_token.pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- if(sspi_send_token.pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
- }
- result = Curl_blockread_all(data, sock, (char *)socksreq, 4, &actualread);
- if(result || (actualread != 4)) {
- failf(data, "Failed to receive SSPI encryption response.");
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- /* ignore the first (VER) byte */
- if(socksreq[1] == 255) { /* status / message type */
- failf(data, "User was rejected by the SOCKS5 server (%u %u).",
- (unsigned int)socksreq[0], (unsigned int)socksreq[1]);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- if(socksreq[1] != 2) { /* status / message type */
- failf(data, "Invalid SSPI encryption response type (%u %u).",
- (unsigned int)socksreq[0], (unsigned int)socksreq[1]);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- memcpy(&us_length, socksreq + 2, sizeof(short));
- us_length = ntohs(us_length);
- sspi_w_token[0].cbBuffer = us_length;
- sspi_w_token[0].pvBuffer = malloc(us_length);
- if(!sspi_w_token[0].pvBuffer) {
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_OUT_OF_MEMORY;
- }
- result = Curl_blockread_all(data, sock, (char *)sspi_w_token[0].pvBuffer,
- sspi_w_token[0].cbBuffer, &actualread);
- if(result || (actualread != us_length)) {
- failf(data, "Failed to receive SSPI encryption type.");
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- if(!data->set.socks5_gssapi_nec) {
- wrap_desc.cBuffers = 2;
- sspi_w_token[0].BufferType = SECBUFFER_STREAM;
- sspi_w_token[1].BufferType = SECBUFFER_DATA;
- sspi_w_token[1].cbBuffer = 0;
- sspi_w_token[1].pvBuffer = NULL;
- status = s_pSecFn->DecryptMessage(&sspi_context,
- &wrap_desc,
- 0,
- &qop);
- if(check_sspi_err(data, status, "DecryptMessage")) {
- if(sspi_w_token[0].pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- if(sspi_w_token[1].pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- failf(data, "Failed to query security context attributes.");
- return CURLE_COULDNT_CONNECT;
- }
- if(sspi_w_token[1].cbBuffer != 1) {
- failf(data, "Invalid SSPI encryption response length (%lu).",
- (unsigned long)sspi_w_token[1].cbBuffer);
- if(sspi_w_token[0].pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- if(sspi_w_token[1].pvBuffer)
- s_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- memcpy(socksreq, sspi_w_token[1].pvBuffer, sspi_w_token[1].cbBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
- }
- else {
- if(sspi_w_token[0].cbBuffer != 1) {
- failf(data, "Invalid SSPI encryption response length (%lu).",
- (unsigned long)sspi_w_token[0].cbBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- return CURLE_COULDNT_CONNECT;
- }
- memcpy(socksreq, sspi_w_token[0].pvBuffer, sspi_w_token[0].cbBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- }
- (void)curlx_nonblock(sock, TRUE);
- infof(data, "SOCKS5 access with%s protection granted.",
- (socksreq[0] == 0)?"out GSS-API data":
- ((socksreq[0] == 1)?" GSS-API integrity":" GSS-API confidentiality"));
- /* For later use if encryption is required
- conn->socks5_gssapi_enctype = socksreq[0];
- if(socksreq[0] != 0)
- conn->socks5_sspi_context = sspi_context;
- else {
- s_pSecFn->DeleteSecurityContext(&sspi_context);
- conn->socks5_sspi_context = sspi_context;
- }
- */
- return CURLE_OK;
- }
- #endif
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