diff options
Diffstat (limited to 'Utilities/cmcurl/http_negotiate.c')
| -rw-r--r-- | Utilities/cmcurl/http_negotiate.c | 327 |
1 files changed, 0 insertions, 327 deletions
diff --git a/Utilities/cmcurl/http_negotiate.c b/Utilities/cmcurl/http_negotiate.c deleted file mode 100644 index bdfeefa..0000000 --- a/Utilities/cmcurl/http_negotiate.c +++ /dev/null @@ -1,327 +0,0 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2007, 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. - * - * $Id$ - ***************************************************************************/ -#include "setup.h" - -#ifdef HAVE_GSSAPI -#ifdef HAVE_GSSMIT -#define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name -#endif - -#ifndef CURL_DISABLE_HTTP - /* -- WIN32 approved -- */ -#include <stdio.h> -#include <string.h> -#include <stdarg.h> -#include <stdlib.h> -#include <ctype.h> - -#include "urldata.h" -#include "sendf.h" -#include "strequal.h" -#include "base64.h" -#include "http_negotiate.h" -#include "memory.h" - -#define _MPRINTF_REPLACE /* use our functions only */ -#include <curl/mprintf.h> - -/* The last #include file should be: */ -#include "memdebug.h" - -static int -get_gss_name(struct connectdata *conn, gss_name_t *server) -{ - struct negotiatedata *neg_ctx = &conn->data->state.negotiate; - OM_uint32 major_status, minor_status; - gss_buffer_desc token = GSS_C_EMPTY_BUFFER; - char name[2048]; - const char* service; - - /* 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 */ - - if (neg_ctx->gss) - service = "KHTTP"; - else - service = "HTTP"; - - token.length = strlen(service) + 1 + strlen(conn->host.name) + 1; - if (token.length + 1 > sizeof(name)) - return EMSGSIZE; - - snprintf(name, sizeof(name), "%s@%s", service, conn->host.name); - - token.value = (void *) name; - major_status = gss_import_name(&minor_status, - &token, - GSS_C_NT_HOSTBASED_SERVICE, - server); - - return GSS_ERROR(major_status) ? -1 : 0; -} - -static void -log_gss_error(struct connectdata *conn, OM_uint32 error_status, char *prefix) -{ - OM_uint32 maj_stat, min_stat; - OM_uint32 msg_ctx = 0; - gss_buffer_desc status_string; - char buf[1024]; - size_t len; - - snprintf(buf, sizeof(buf), "%s", prefix); - len = strlen(buf); - do { - maj_stat = gss_display_status (&min_stat, - error_status, - GSS_C_MECH_CODE, - GSS_C_NO_OID, - &msg_ctx, - &status_string); - if (sizeof(buf) > len + status_string.length + 1) { - snprintf(buf + len, sizeof(buf) - len, - ": %s", (char*) status_string.value); - len += status_string.length; - } - gss_release_buffer(&min_stat, &status_string); - } while (!GSS_ERROR(maj_stat) && msg_ctx != 0); - - infof(conn->data, "%s", buf); -} - -int Curl_input_negotiate(struct connectdata *conn, char *header) -{ - struct negotiatedata *neg_ctx = &conn->data->state.negotiate; - OM_uint32 major_status, minor_status, minor_status2; - gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER; - gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER; - int ret; - size_t len; - bool gss; - const char* protocol; - - 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 == GSS_S_COMPLETE) { - /* We finished succesfully 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 (neg_ctx->server_name == NULL && - (ret = get_gss_name(conn, &neg_ctx->server_name))) - return ret; - - header += strlen(neg_ctx->protocol); - while(*header && ISSPACE(*header)) - header++; - - len = strlen(header); - if (len > 0) { - int rawlen = Curl_base64_decode(header, (unsigned char **)&input_token.value); - if (rawlen < 0) - return -1; - input_token.length = rawlen; - -#ifdef HAVE_SPNEGO /* Handle SPNEGO */ - if (checkprefix("Negotiate", header)) { - ASN1_OBJECT * object = NULL; - int rc = 1; - unsigned char * spnegoToken = NULL; - size_t spnegoTokenLength = 0; - unsigned char * mechToken = NULL; - size_t mechTokenLength = 0; - - spnegoToken = malloc(input_token.length); - if (input_token.value == NULL) - return ENOMEM; - spnegoTokenLength = input_token.length; - - object = OBJ_txt2obj ("1.2.840.113554.1.2.2", 1); - if (!parseSpnegoTargetToken(spnegoToken, - spnegoTokenLength, - NULL, - NULL, - &mechToken, - &mechTokenLength, - NULL, - NULL)) { - free(spnegoToken); - spnegoToken = NULL; - infof(conn->data, "Parse SPNEGO Target Token failed\n"); - } - else { - free(input_token.value); - input_token.value = NULL; - input_token.value = malloc(mechTokenLength); - memcpy(input_token.value, mechToken,mechTokenLength); - input_token.length = mechTokenLength; - free(mechToken); - mechToken = NULL; - infof(conn->data, "Parse SPNEGO Target Token succeeded\n"); - } - } -#endif - } - - major_status = gss_init_sec_context(&minor_status, - GSS_C_NO_CREDENTIAL, - &neg_ctx->context, - neg_ctx->server_name, - GSS_C_NO_OID, - GSS_C_DELEG_FLAG, - 0, - GSS_C_NO_CHANNEL_BINDINGS, - &input_token, - NULL, - &output_token, - NULL, - NULL); - if (input_token.length > 0) - gss_release_buffer(&minor_status2, &input_token); - neg_ctx->status = major_status; - if (GSS_ERROR(major_status)) { - /* Curl_cleanup_negotiate(conn->data) ??? */ - log_gss_error(conn, minor_status, - (char *)"gss_init_sec_context() failed: "); - return -1; - } - - if (output_token.length == 0) { - return -1; - } - - neg_ctx->output_token = output_token; - /* conn->bits.close = FALSE; */ - - return 0; -} - - -CURLcode Curl_output_negotiate(struct connectdata *conn) -{ - struct negotiatedata *neg_ctx = &conn->data->state.negotiate; - OM_uint32 minor_status; - char *encoded = NULL; - int len; - -#ifdef HAVE_SPNEGO /* Handle SPNEGO */ - if (checkprefix("Negotiate",neg_ctx->protocol)) { - ASN1_OBJECT * object = NULL; - int rc = 1; - unsigned char * spnegoToken = NULL; - size_t spnegoTokenLength = 0; - unsigned char * responseToken = NULL; - size_t responseTokenLength = 0; - - responseToken = malloc(neg_ctx->output_token.length); - if ( responseToken == NULL) - return CURLE_OUT_OF_MEMORY; - memcpy(responseToken, neg_ctx->output_token.value, - neg_ctx->output_token.length); - responseTokenLength = neg_ctx->output_token.length; - - object=OBJ_txt2obj ("1.2.840.113554.1.2.2", 1); - if (!makeSpnegoInitialToken (object, - responseToken, - responseTokenLength, - &spnegoToken, - &spnegoTokenLength)) { - free(responseToken); - responseToken = NULL; - infof(conn->data, "Make SPNEGO Initial Token failed\n"); - } - else { - free(neg_ctx->output_token.value); - responseToken = NULL; - neg_ctx->output_token.value = malloc(spnegoTokenLength); - memcpy(neg_ctx->output_token.value, spnegoToken,spnegoTokenLength); - neg_ctx->output_token.length = spnegoTokenLength; - free(spnegoToken); - spnegoToken = NULL; - infof(conn->data, "Make SPNEGO Initial Token succeeded\n"); - } - } -#endif - len = Curl_base64_encode(conn->data, - neg_ctx->output_token.value, - neg_ctx->output_token.length, - &encoded); - - if (len < 0) - return CURLE_OUT_OF_MEMORY; - - conn->allocptr.userpwd = - aprintf("Authorization: %s %s\r\n", neg_ctx->protocol, encoded); - free(encoded); - gss_release_buffer(&minor_status, &neg_ctx->output_token); - return (conn->allocptr.userpwd == NULL) ? CURLE_OUT_OF_MEMORY : CURLE_OK; -} - -void Curl_cleanup_negotiate(struct SessionHandle *data) -{ - OM_uint32 minor_status; - struct negotiatedata *neg_ctx = &data->state.negotiate; - - if (neg_ctx->context != GSS_C_NO_CONTEXT) - gss_delete_sec_context(&minor_status, &neg_ctx->context, GSS_C_NO_BUFFER); - - if (neg_ctx->output_token.length != 0) - gss_release_buffer(&minor_status, &neg_ctx->output_token); - - if (neg_ctx->server_name != GSS_C_NO_NAME) - gss_release_name(&minor_status, &neg_ctx->server_name); - - memset(neg_ctx, 0, sizeof(*neg_ctx)); -} - - -#endif -#endif |