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Diffstat (limited to 'external/libcurl_android/jni/libcurl/lib/socks_gssapi.c')
-rwxr-xr-xexternal/libcurl_android/jni/libcurl/lib/socks_gssapi.c534
1 files changed, 0 insertions, 534 deletions
diff --git a/external/libcurl_android/jni/libcurl/lib/socks_gssapi.c b/external/libcurl_android/jni/libcurl/lib/socks_gssapi.c
deleted file mode 100755
index 0eaa74c2..00000000
--- a/external/libcurl_android/jni/libcurl/lib/socks_gssapi.c
+++ /dev/null
@@ -1,534 +0,0 @@
-/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * 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.
- *
- * 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"
-
-#ifndef CURL_DISABLE_PROXY
-
-#ifdef HAVE_GSSAPI
-#ifdef HAVE_OLD_GSSMIT
-#define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name
-#define NCOMPAT 1
-#endif
-#ifndef gss_nt_service_name
-#define gss_nt_service_name GSS_C_NT_HOSTBASED_SERVICE
-#endif
-
-#include "curl_gssapi.h"
-#include "urldata.h"
-#include "sendf.h"
-#include "connect.h"
-#include "timeval.h"
-#include "socks.h"
-#include "warnless.h"
-
-#define _MPRINTF_REPLACE /* use our functions only */
-#include <curl/mprintf.h>
-
-#include "curl_memory.h"
-/* The last #include file should be: */
-#include "memdebug.h"
-
-static gss_ctx_id_t gss_context = GSS_C_NO_CONTEXT;
-
-/*
- * Helper GSS-API error functions.
- */
-static int check_gss_err(struct SessionHandle *data,
- OM_uint32 major_status,
- OM_uint32 minor_status,
- const char* function)
-{
- if(GSS_ERROR(major_status)) {
- OM_uint32 maj_stat,min_stat;
- OM_uint32 msg_ctx = 0;
- gss_buffer_desc status_string;
- char buf[1024];
- size_t len;
-
- len = 0;
- msg_ctx = 0;
- while(!msg_ctx) {
- /* convert major status code (GSS-API error) to text */
- maj_stat = gss_display_status(&min_stat, major_status,
- GSS_C_GSS_CODE,
- GSS_C_NULL_OID,
- &msg_ctx, &status_string);
- if(maj_stat == GSS_S_COMPLETE) {
- if(sizeof(buf) > len + status_string.length + 1) {
- strcpy(buf+len, (char*) status_string.value);
- len += status_string.length;
- }
- gss_release_buffer(&min_stat, &status_string);
- break;
- }
- gss_release_buffer(&min_stat, &status_string);
- }
- if(sizeof(buf) > len + 3) {
- strcpy(buf+len, ".\n");
- len += 2;
- }
- msg_ctx = 0;
- while(!msg_ctx) {
- /* convert minor status code (underlying routine error) to text */
- maj_stat = gss_display_status(&min_stat, minor_status,
- GSS_C_MECH_CODE,
- GSS_C_NULL_OID,
- &msg_ctx, &status_string);
- if(maj_stat == GSS_S_COMPLETE) {
- if(sizeof(buf) > len + status_string.length)
- strcpy(buf+len, (char*) status_string.value);
- gss_release_buffer(&min_stat, &status_string);
- break;
- }
- gss_release_buffer(&min_stat, &status_string);
- }
- failf(data, "GSS-API error: %s failed:\n%s", function, buf);
- return(1);
- }
-
- return(0);
-}
-
-CURLcode Curl_SOCKS5_gssapi_negotiate(int sockindex,
- struct connectdata *conn)
-{
- struct SessionHandle *data = conn->data;
- curl_socket_t sock = conn->sock[sockindex];
- CURLcode code;
- ssize_t actualread;
- ssize_t written;
- int result;
- OM_uint32 gss_major_status, gss_minor_status, gss_status;
- OM_uint32 gss_ret_flags;
- int gss_conf_state, gss_enc;
- gss_buffer_desc service = GSS_C_EMPTY_BUFFER;
- gss_buffer_desc gss_send_token = GSS_C_EMPTY_BUFFER;
- gss_buffer_desc gss_recv_token = GSS_C_EMPTY_BUFFER;
- gss_buffer_desc gss_w_token = GSS_C_EMPTY_BUFFER;
- gss_buffer_desc* gss_token = GSS_C_NO_BUFFER;
- gss_name_t server = GSS_C_NO_NAME;
- gss_name_t gss_client_name = GSS_C_NO_NAME;
- unsigned short us_length;
- char *user=NULL;
- unsigned char socksreq[4]; /* room for GSS-API exchange header only */
- char *serviceptr = data->set.str[STRING_SOCKS5_GSSAPI_SERVICE];
-
- /* GSS-API request looks like
- * +----+------+-----+----------------+
- * |VER | MTYP | LEN | TOKEN |
- * +----+------+----------------------+
- * | 1 | 1 | 2 | up to 2^16 - 1 |
- * +----+------+-----+----------------+
- */
-
- /* prepare service name */
- if(strchr(serviceptr,'/')) {
- service.value = malloc(strlen(serviceptr));
- if(!service.value)
- return CURLE_OUT_OF_MEMORY;
- service.length = strlen(serviceptr);
- memcpy(service.value, serviceptr, service.length);
-
- gss_major_status = gss_import_name(&gss_minor_status, &service,
- (gss_OID) GSS_C_NULL_OID, &server);
- }
- else {
- service.value = malloc(strlen(serviceptr) +strlen(conn->proxy.name)+2);
- if(!service.value)
- return CURLE_OUT_OF_MEMORY;
- service.length = strlen(serviceptr) +strlen(conn->proxy.name)+1;
- snprintf(service.value, service.length+1, "%s@%s",
- serviceptr, conn->proxy.name);
-
- gss_major_status = gss_import_name(&gss_minor_status, &service,
- gss_nt_service_name, &server);
- }
-
- gss_release_buffer(&gss_status, &service); /* clear allocated memory */
-
- if(check_gss_err(data,gss_major_status,
- gss_minor_status,"gss_import_name()")) {
- failf(data, "Failed to create service name.");
- gss_release_name(&gss_status, &server);
- return CURLE_COULDNT_CONNECT;
- }
-
- /* As long as we need to keep sending some context info, and there's no */
- /* errors, keep sending it... */
- for(;;) {
- gss_major_status = Curl_gss_init_sec_context(data,
- &gss_minor_status,
- &gss_context,
- server,
- &Curl_krb5_mech_oid,
- NULL,
- gss_token,
- &gss_send_token,
- &gss_ret_flags);
-
- if(gss_token != GSS_C_NO_BUFFER)
- gss_release_buffer(&gss_status, &gss_recv_token);
- if(check_gss_err(data,gss_major_status,
- gss_minor_status,"gss_init_sec_context")) {
- gss_release_name(&gss_status, &server);
- gss_release_buffer(&gss_status, &gss_recv_token);
- gss_release_buffer(&gss_status, &gss_send_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- failf(data, "Failed to initial GSS-API token.");
- return CURLE_COULDNT_CONNECT;
- }
-
- if(gss_send_token.length != 0) {
- socksreq[0] = 1; /* GSS-API subnegotiation version */
- socksreq[1] = 1; /* authentication message type */
- us_length = htons((short)gss_send_token.length);
- memcpy(socksreq+2,&us_length,sizeof(short));
-
- code = Curl_write_plain(conn, sock, (char *)socksreq, 4, &written);
- if((code != CURLE_OK) || (4 != written)) {
- failf(data, "Failed to send GSS-API authentication request.");
- gss_release_name(&gss_status, &server);
- gss_release_buffer(&gss_status, &gss_recv_token);
- gss_release_buffer(&gss_status, &gss_send_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- code = Curl_write_plain(conn, sock, (char *)gss_send_token.value,
- gss_send_token.length, &written);
-
- if((code != CURLE_OK) || ((ssize_t)gss_send_token.length != written)) {
- failf(data, "Failed to send GSS-API authentication token.");
- gss_release_name(&gss_status, &server);
- gss_release_buffer(&gss_status, &gss_recv_token);
- gss_release_buffer(&gss_status, &gss_send_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- }
-
- gss_release_buffer(&gss_status, &gss_send_token);
- gss_release_buffer(&gss_status, &gss_recv_token);
- if(gss_major_status != GSS_S_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(conn, sock, (char *)socksreq, 4, &actualread);
- if(result != CURLE_OK || actualread != 4) {
- failf(data, "Failed to receive GSS-API authentication response.");
- gss_release_name(&gss_status, &server);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- 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]);
- gss_release_name(&gss_status, &server);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- if(socksreq[1] != 1) { /* status / messgae type */
- failf(data, "Invalid GSS-API authentication response type (%d %d).",
- socksreq[0], socksreq[1]);
- gss_release_name(&gss_status, &server);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- memcpy(&us_length, socksreq+2, sizeof(short));
- us_length = ntohs(us_length);
-
- gss_recv_token.length=us_length;
- gss_recv_token.value=malloc(us_length);
- if(!gss_recv_token.value) {
- failf(data,
- "Could not allocate memory for GSS-API authentication "
- "response token.");
- gss_release_name(&gss_status, &server);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_OUT_OF_MEMORY;
- }
-
- result=Curl_blockread_all(conn, sock, (char *)gss_recv_token.value,
- gss_recv_token.length, &actualread);
-
- if(result != CURLE_OK || actualread != us_length) {
- failf(data, "Failed to receive GSS-API authentication token.");
- gss_release_name(&gss_status, &server);
- gss_release_buffer(&gss_status, &gss_recv_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- gss_token = &gss_recv_token;
- }
-
- gss_release_name(&gss_status, &server);
-
- /* Everything is good so far, user was authenticated! */
- gss_major_status = gss_inquire_context (&gss_minor_status, gss_context,
- &gss_client_name, NULL, NULL, NULL,
- NULL, NULL, NULL);
- if(check_gss_err(data,gss_major_status,
- gss_minor_status,"gss_inquire_context")) {
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- gss_release_name(&gss_status, &gss_client_name);
- failf(data, "Failed to determine user name.");
- return CURLE_COULDNT_CONNECT;
- }
- gss_major_status = gss_display_name(&gss_minor_status, gss_client_name,
- &gss_send_token, NULL);
- if(check_gss_err(data,gss_major_status,
- gss_minor_status,"gss_display_name")) {
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- gss_release_name(&gss_status, &gss_client_name);
- gss_release_buffer(&gss_status, &gss_send_token);
- failf(data, "Failed to determine user name.");
- return CURLE_COULDNT_CONNECT;
- }
- user=malloc(gss_send_token.length+1);
- if(!user) {
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- gss_release_name(&gss_status, &gss_client_name);
- gss_release_buffer(&gss_status, &gss_send_token);
- return CURLE_OUT_OF_MEMORY;
- }
-
- memcpy(user, gss_send_token.value, gss_send_token.length);
- user[gss_send_token.length] = '\0';
- gss_release_name(&gss_status, &gss_client_name);
- gss_release_buffer(&gss_status, &gss_send_token);
- infof(data, "SOCKS5 server authencticated user %s with GSS-API.\n",user);
- free(user);
- user=NULL;
-
- /* 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(gss_ret_flags & GSS_C_CONF_FLAG)
- gss_enc = 2;
- /* else do integrity protection */
- else if(gss_ret_flags & GSS_C_INTEG_FLAG)
- gss_enc = 1;
-
- infof(data, "SOCKS5 server supports GSS-API %s data protection.\n",
- (gss_enc==0)?"no":((gss_enc==1)?"integrity":"confidentiality"));
- /* force for the moment to no data protection */
- 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 {
- gss_send_token.length = 1;
- gss_send_token.value = malloc(1);
- if(!gss_send_token.value) {
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_OUT_OF_MEMORY;
- }
- memcpy(gss_send_token.value, &gss_enc, 1);
-
- gss_major_status = gss_wrap(&gss_minor_status, gss_context, 0,
- GSS_C_QOP_DEFAULT, &gss_send_token,
- &gss_conf_state, &gss_w_token);
-
- if(check_gss_err(data,gss_major_status,gss_minor_status,"gss_wrap")) {
- gss_release_buffer(&gss_status, &gss_send_token);
- gss_release_buffer(&gss_status, &gss_w_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- failf(data, "Failed to wrap GSS-API encryption value into token.");
- return CURLE_COULDNT_CONNECT;
- }
- gss_release_buffer(&gss_status, &gss_send_token);
-
- us_length = htons((short)gss_w_token.length);
- memcpy(socksreq+2,&us_length,sizeof(short));
- }
-
- code = Curl_write_plain(conn, sock, (char *)socksreq, 4, &written);
- if((code != CURLE_OK) || (4 != written)) {
- failf(data, "Failed to send GSS-API encryption request.");
- gss_release_buffer(&gss_status, &gss_w_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- if(data->set.socks5_gssapi_nec) {
- memcpy(socksreq, &gss_enc, 1);
- code = Curl_write_plain(conn, sock, socksreq, 1, &written);
- if((code != CURLE_OK) || ( 1 != written)) {
- failf(data, "Failed to send GSS-API encryption type.");
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
- }
- else {
- code = Curl_write_plain(conn, sock, (char *)gss_w_token.value,
- gss_w_token.length, &written);
- if((code != CURLE_OK) || ((ssize_t)gss_w_token.length != written)) {
- failf(data, "Failed to send GSS-API encryption type.");
- gss_release_buffer(&gss_status, &gss_w_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
- gss_release_buffer(&gss_status, &gss_w_token);
- }
-
- result=Curl_blockread_all(conn, sock, (char *)socksreq, 4, &actualread);
- if(result != CURLE_OK || actualread != 4) {
- failf(data, "Failed to receive GSS-API encryption response.");
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- 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]);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- if(socksreq[1] != 2) { /* status / messgae type */
- failf(data, "Invalid GSS-API encryption response type (%d %d).",
- socksreq[0], socksreq[1]);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- memcpy(&us_length, socksreq+2, sizeof(short));
- us_length = ntohs(us_length);
-
- gss_recv_token.length= us_length;
- gss_recv_token.value=malloc(gss_recv_token.length);
- if(!gss_recv_token.value) {
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_OUT_OF_MEMORY;
- }
- result=Curl_blockread_all(conn, sock, (char *)gss_recv_token.value,
- gss_recv_token.length, &actualread);
-
- if(result != CURLE_OK || actualread != us_length) {
- failf(data, "Failed to receive GSS-API encryptrion type.");
- gss_release_buffer(&gss_status, &gss_recv_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- if(!data->set.socks5_gssapi_nec) {
- gss_major_status = gss_unwrap(&gss_minor_status, gss_context,
- &gss_recv_token, &gss_w_token,
- 0, GSS_C_QOP_DEFAULT);
-
- if(check_gss_err(data,gss_major_status,gss_minor_status,"gss_unwrap")) {
- gss_release_buffer(&gss_status, &gss_recv_token);
- gss_release_buffer(&gss_status, &gss_w_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- failf(data, "Failed to unwrap GSS-API encryption value into token.");
- return CURLE_COULDNT_CONNECT;
- }
- gss_release_buffer(&gss_status, &gss_recv_token);
-
- if(gss_w_token.length != 1) {
- failf(data, "Invalid GSS-API encryption response length (%d).",
- gss_w_token.length);
- gss_release_buffer(&gss_status, &gss_w_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- memcpy(socksreq,gss_w_token.value,gss_w_token.length);
- gss_release_buffer(&gss_status, &gss_w_token);
- }
- else {
- if(gss_recv_token.length != 1) {
- failf(data, "Invalid GSS-API encryption response length (%d).",
- gss_recv_token.length);
- gss_release_buffer(&gss_status, &gss_recv_token);
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
- return CURLE_COULDNT_CONNECT;
- }
-
- memcpy(socksreq,gss_recv_token.value,gss_recv_token.length);
- gss_release_buffer(&gss_status, &gss_recv_token);
- }
-
- infof(data, "SOCKS5 access with%s protection granted.\n",
- (socksreq[0]==0)?"out GSS-API data":
- ((socksreq[0]==1)?" GSS-API integrity":" GSS-API confidentiality"));
-
- conn->socks5_gssapi_enctype = socksreq[0];
- if(socksreq[0] == 0)
- gss_delete_sec_context(&gss_status, &gss_context, NULL);
-
- return CURLE_OK;
-}
-#endif
-
-#endif /* CURL_DISABLE_PROXY */