* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
+ * Copyright (C) 2012 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 2009, 2011, Markus Moeller, <markus_moeller@compuserve.com>
- * Copyright (C) 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.
+ * are also available at https://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
*
***************************************************************************/
-#include "setup.h"
+#include "curl_setup.h"
-#ifdef USE_WINDOWS_SSPI
+#if defined(USE_WINDOWS_SSPI) && !defined(CURL_DISABLE_PROXY)
#include "urldata.h"
#include "sendf.h"
#include "curl_sspi.h"
#include "curl_multibyte.h"
#include "warnless.h"
-
-#define _MPRINTF_REPLACE /* use the internal *printf() functions */
-#include <curl/mprintf.h>
-
+#include "strdup.h"
+/* The last 3 #include files should be in this order */
+#include "curl_printf.h"
#include "curl_memory.h"
-/* The last #include file should be: */
#include "memdebug.h"
/*
- * Definitions required from ntsecapi.h are directly provided below this point
- * to avoid including ntsecapi.h due to a conflict with OpenSSL's safestack.h
- */
-#define KERB_WRAP_NO_ENCRYPT 0x80000001
-
-/*
* Helper sspi error functions.
*/
static int check_sspi_err(struct connectdata *conn,
SECURITY_STATUS status,
- const char* function)
+ const char *function)
{
if(status != SEC_E_OK &&
status != SEC_I_COMPLETE_AND_CONTINUE &&
CURLcode Curl_SOCKS5_gssapi_negotiate(int sockindex,
struct connectdata *conn)
{
- struct SessionHandle *data = conn->data;
+ struct Curl_easy *data = conn->data;
curl_socket_t sock = conn->sock[sockindex];
CURLcode code;
ssize_t actualread;
ssize_t written;
int result;
- /* Needs GSSAPI authentication */
+ /* Needs GSS-API authentication */
SECURITY_STATUS status;
unsigned long sspi_ret_flags = 0;
- int gss_enc;
+ 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;
TimeStamp expiry;
char *service_name = NULL;
unsigned short us_length;
- ULONG qop;
- unsigned char socksreq[4]; /* room for gssapi exchange header only */
- char *service = data->set.str[STRING_SOCKS5_GSSAPI_SERVICE];
+ 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);
- /* GSSAPI request looks like
+ /* GSS-API request looks like
* +----+------+-----+----------------+
* |VER | MTYP | LEN | TOKEN |
* +----+------+----------------------+
/* prepare service name */
if(strchr(service, '/')) {
- service_name = malloc(strlen(service));
+ service_name = strdup(service);
if(!service_name)
return CURLE_OUT_OF_MEMORY;
- memcpy(service_name, service, strlen(service));
}
else {
- service_name = malloc(strlen(service) + strlen(conn->proxy.name) + 2);
+ service_name = malloc(service_length +
+ strlen(conn->socks_proxy.host.name) + 2);
if(!service_name)
return CURLE_OUT_OF_MEMORY;
- snprintf(service_name,strlen(service) +strlen(conn->proxy.name)+2,"%s/%s",
- service,conn->proxy.name);
+ snprintf(service_name, service_length +
+ strlen(conn->socks_proxy.host.name) + 2, "%s/%s",
+ service, conn->socks_proxy.host.name);
}
input_desc.cBuffers = 1;
cred_handle.dwUpper = 0;
status = s_pSecFn->AcquireCredentialsHandle(NULL,
- TEXT("Kerberos"),
+ (TCHAR *) TEXT("Kerberos"),
SECPKG_CRED_OUTBOUND,
NULL,
NULL,
if(check_sspi_err(conn, status, "AcquireCredentialsHandle")) {
failf(data, "Failed to acquire credentials.");
- Curl_safefree(service_name);
+ free(service_name);
s_pSecFn->FreeCredentialsHandle(&cred_handle);
return CURLE_COULDNT_CONNECT;
}
/* As long as we need to keep sending some context info, and there's no */
/* errors, keep sending it... */
for(;;) {
- LPTSTR sname;
-#ifdef UNICODE
- sname = Curl_convert_UTF8_to_wchar(service_name);
+ TCHAR *sname;
+
+ sname = Curl_convert_UTF8_to_tchar(service_name);
if(!sname)
return CURLE_OUT_OF_MEMORY;
-#else
- sname = service_name;
-#endif
+
status = s_pSecFn->InitializeSecurityContext(&cred_handle,
context_handle,
sname,
&sspi_ret_flags,
&expiry);
-#ifdef UNICODE
- Curl_safefree(sname);
-#endif
+ Curl_unicodefree(sname);
if(sspi_recv_token.pvBuffer) {
s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
}
if(check_sspi_err(conn, status, "InitializeSecurityContext")) {
- Curl_safefree(service_name);
+ free(service_name);
s_pSecFn->FreeCredentialsHandle(&cred_handle);
s_pSecFn->DeleteSecurityContext(&sspi_context);
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
+ 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 != 0) {
- socksreq[0] = 1; /* gssapi subnegotiation version */
+ 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));
+ memcpy(socksreq + 2, &us_length, sizeof(short));
code = Curl_write_plain(conn, sock, (char *)socksreq, 4, &written);
- if((code != CURLE_OK) || (4 != written)) {
+ if(code || (4 != written)) {
failf(data, "Failed to send SSPI authentication request.");
- Curl_safefree(service_name);
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
+ 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(conn, sock, (char *)sspi_send_token.pvBuffer,
sspi_send_token.cbBuffer, &written);
- if((code != CURLE_OK) || (sspi_send_token.cbBuffer != (size_t)written)) {
+ if(code || (sspi_send_token.cbBuffer != (size_t)written)) {
failf(data, "Failed to send SSPI authentication token.");
- Curl_safefree(service_name);
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
+ 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;
}
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
- sspi_send_token.pvBuffer = NULL;
+ if(sspi_send_token.pvBuffer) {
+ s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
+ sspi_send_token.pvBuffer = NULL;
+ }
sspi_send_token.cbBuffer = 0;
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
- sspi_recv_token.pvBuffer = NULL;
+
+ 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 */
- /* GSSAPI response looks like
+ /* GSS-API response looks like
* +----+------+-----+----------------+
* |VER | MTYP | LEN | TOKEN |
* +----+------+----------------------+
*/
result = Curl_blockread_all(conn, sock, (char *)socksreq, 4, &actualread);
- if(result != CURLE_OK || actualread != 4) {
+ if(result || (actualread != 4)) {
failf(data, "Failed to receive SSPI authentication response.");
- Curl_safefree(service_name);
+ 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 (%d %d).",
- socksreq[0], socksreq[1]);
- Curl_safefree(service_name);
+ 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 / messgae type */
- failf(data, "Invalid SSPI authentication response type (%d %d).",
- socksreq[0], socksreq[1]);
- Curl_safefree(service_name);
+ 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));
+ 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) {
- Curl_safefree(service_name);
+ free(service_name);
s_pSecFn->FreeCredentialsHandle(&cred_handle);
s_pSecFn->DeleteSecurityContext(&sspi_context);
return CURLE_OUT_OF_MEMORY;
result = Curl_blockread_all(conn, sock, (char *)sspi_recv_token.pvBuffer,
sspi_recv_token.cbBuffer, &actualread);
- if(result != CURLE_OK || actualread != us_length) {
+ if(result || (actualread != us_length)) {
failf(data, "Failed to receive SSPI authentication token.");
- Curl_safefree(service_name);
- s_pSecFn->FreeContextBuffer(sspi_recv_token.pvBuffer);
+ 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;
}
- Curl_safefree(service_name);
+ free(service_name);
/* Everything is good so far, user was authenticated! */
status = s_pSecFn->QueryCredentialsAttributes(&cred_handle,
failf(data, "Failed to determine user name.");
return CURLE_COULDNT_CONNECT;
}
- infof(data, "SOCKS5 server authencticated user %s with gssapi.\n",
+ infof(data, "SOCKS5 server authencticated user %s with GSS-API.\n",
names.sUserName);
s_pSecFn->FreeContextBuffer(names.sUserName);
/* Do encryption */
- socksreq[0] = 1; /* gssapi subnegotiation version */
+ socksreq[0] = 1; /* GSS-API subnegotiation version */
socksreq[1] = 2; /* encryption message type */
gss_enc = 0; /* no data protection */
else if(sspi_ret_flags & ISC_REQ_INTEGRITY)
gss_enc = 1;
- infof(data, "SOCKS5 server supports gssapi %s data protection.\n",
- (gss_enc==0)?"no":((gss_enc==1)?"integrity":"confidentiality") );
+ infof(data, "SOCKS5 server supports GSS-API %s data protection.\n",
+ (gss_enc == 0)?"no":((gss_enc == 1)?"integrity":"confidentiality") );
/* force to no data protection, avoid encryption/decryption for now */
gss_enc = 0;
/*
if(data->set.socks5_gssapi_nec) {
us_length = htons((short)1);
- memcpy(socksreq+2, &us_length, sizeof(short));
+ memcpy(socksreq + 2, &us_length, sizeof(short));
}
else {
status = s_pSecFn->QueryContextAttributes(&sspi_context,
return CURLE_OUT_OF_MEMORY;
}
- memcpy(sspi_w_token[1].pvBuffer,&gss_enc,1);
+ 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);
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[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[2].cbBuffer = 0;
us_length = htons((short)sspi_send_token.cbBuffer);
- memcpy(socksreq+2,&us_length,sizeof(short));
+ memcpy(socksreq + 2, &us_length, sizeof(short));
}
code = Curl_write_plain(conn, sock, (char *)socksreq, 4, &written);
- if((code != CURLE_OK) || (4 != written)) {
+ if(code || (4 != written)) {
failf(data, "Failed to send SSPI encryption request.");
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
+ 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);
+ memcpy(socksreq, &gss_enc, 1);
code = Curl_write_plain(conn, sock, (char *)socksreq, 1, &written);
- if((code != CURLE_OK) || (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(conn, sock, (char *)sspi_send_token.pvBuffer,
sspi_send_token.cbBuffer, &written);
- if((code != CURLE_OK) || (sspi_send_token.cbBuffer != (size_t)written)) {
+ if(code || (sspi_send_token.cbBuffer != (size_t)written)) {
failf(data, "Failed to send SSPI encryption type.");
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
+ if(sspi_send_token.pvBuffer)
+ s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
s_pSecFn->DeleteSecurityContext(&sspi_context);
return CURLE_COULDNT_CONNECT;
}
- s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
+ if(sspi_send_token.pvBuffer)
+ s_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
}
result = Curl_blockread_all(conn, sock, (char *)socksreq, 4, &actualread);
- if(result != CURLE_OK || actualread != 4) {
+ 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 (%d %d).",
- socksreq[0], socksreq[1]);
+ 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 (%d %d).",
- socksreq[0], socksreq[1]);
+ 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));
+ memcpy(&us_length, socksreq + 2, sizeof(short));
us_length = ntohs(us_length);
sspi_w_token[0].cbBuffer = us_length;
result = Curl_blockread_all(conn, sock, (char *)sspi_w_token[0].pvBuffer,
sspi_w_token[0].cbBuffer, &actualread);
- if(result != CURLE_OK || actualread != us_length) {
+ 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);
&qop);
if(check_sspi_err(conn, status, "DecryptMessage")) {
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
+ 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 (%d).",
- sspi_w_token[1].cbBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
- s_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
+ 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);
+ 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 (%d).",
- sspi_w_token[0].cbBuffer);
+ 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);
+ memcpy(socksreq, sspi_w_token[0].pvBuffer, sspi_w_token[0].cbBuffer);
s_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
}
infof(data, "SOCKS5 access with%s protection granted.\n",
- (socksreq[0]==0)?"out gssapi data":
- ((socksreq[0]==1)?" gssapi integrity":" gssapi confidentiality"));
+ (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];
projects / platform / upstream / curl.git / blobdiff