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sasl_gssapi: Added body to Curl_sasl_create_gssapi_user_message()

This commit is contained in:
Steve Holme 2014-12-03 19:51:32 +00:00
parent 61e71a8bc8
commit fa437e14a4
1 changed files with 87 additions and 7 deletions
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94
lib/curl_sasl_gssapi.c
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@ -26,10 +26,18 @@
#if defined(HAVE_GSSAPI) && defined(USE_KERBEROS5)
#ifdef HAVE_OLD_GSSMIT
#define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name
#define NCOMPAT 1
#endif
#include <curl/curl.h>
#include "curl_sasl.h"
#include "urldata.h"
#include "curl_base64.h"
#include "curl_gssapi.h"
#include "curl_memory.h"
#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
@ -87,17 +95,89 @@ CURLcode Curl_sasl_create_gssapi_user_message(struct SessionHandle *data,
struct kerberos5data *krb5,
char **outptr, size_t *outlen)
{
(void) data;
CURLcode result = CURLE_OK;
size_t chlglen = 0;
unsigned char *chlg = NULL;
OM_uint32 gss_status;
OM_uint32 gss_major_status;
OM_uint32 gss_minor_status;
gss_buffer_desc spn_token = GSS_C_EMPTY_BUFFER;
gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER;
gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER;
(void) userp;
(void) passwdp;
(void) service;
(void) mutual_auth;
(void) chlg64;
(void) krb5;
(void) outptr;
(void) outlen;
return CURLE_NOT_BUILT_IN;
if(krb5->context == GSS_C_NO_CONTEXT) {
/* Generate our SPN */
char *spn = Curl_sasl_build_gssapi_spn(service,
data->easy_conn->host.name);
if(!spn)
return CURLE_OUT_OF_MEMORY;
/* Populate the SPN structure */
spn_token.value = spn;
spn_token.length = strlen(spn);
/* Import the SPN */
gss_major_status = gss_import_name(&gss_minor_status, &spn_token,
gss_nt_service_name, &krb5->spn);
if(GSS_ERROR(gss_major_status)) {
Curl_gss_log_error(data, gss_minor_status, "gss_import_name() failed: ");
return CURLE_OUT_OF_MEMORY;
}
}
else {
/* Decode the base-64 encoded challenge message */
if(strlen(chlg64) && *chlg64 != '=') {
result = Curl_base64_decode(chlg64, &chlg, &chlglen);
if(result)
return result;
}
/* Ensure we have a valid challenge message */
if(!chlg)
return CURLE_BAD_CONTENT_ENCODING;
/* Setup the challenge "input" security buffer */
input_token.value = chlg;
input_token.length = chlglen;
}
gss_major_status = Curl_gss_init_sec_context(data,
&gss_minor_status,
&krb5->context,
krb5->spn,
&Curl_krb5_mech_oid,
GSS_C_NO_CHANNEL_BINDINGS,
&input_token,
&output_token,
NULL);
Curl_safefree(input_token.value);
if(GSS_ERROR(gss_major_status)) {
if(output_token.value)
gss_release_buffer(&gss_status, &output_token);
Curl_gss_log_error(data, gss_minor_status,
"gss_init_sec_context() failed: ");
return CURLE_RECV_ERROR;
}
if(output_token.value && output_token.length) {
/* Base64 encode the response */
result = Curl_base64_encode(data, (char *) output_token.value,
output_token.length, outptr, outlen);
gss_release_buffer(&gss_status, &output_token);
}
return result;
}
/*