#include "curl_setup.h"
#ifdef HAVE_GSSAPI
#include "curl_gssapi.h"
#include "sendf.h"
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
static char spnego_oid_bytes[] = "\x2b\x06\x01\x05\x05\x02";
gss_OID_desc Curl_spnego_mech_oid = { 6, NULL };
static char krb5_oid_bytes[] = "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02";
gss_OID_desc Curl_krb5_mech_oid = { 9, NULL };
OM_uint32 Curl_gss_init_sec_context(
struct Curl_easy *data,
OM_uint32 *minor_status,
gss_ctx_id_t *context,
gss_name_t target_name,
gss_OID mech_type,
gss_channel_bindings_t input_chan_bindings,
gss_buffer_t input_token,
gss_buffer_t output_token,
const bool mutual_auth,
OM_uint32 *ret_flags)
{
OM_uint32 req_flags = GSS_C_REPLAY_FLAG;
Curl_spnego_mech_oid.elements = &spnego_oid_bytes;
Curl_krb5_mech_oid.elements = &krb5_oid_bytes;
if(mutual_auth)
req_flags |= GSS_C_MUTUAL_FLAG;
if(data->set.gssapi_delegation & CURLGSSAPI_DELEGATION_POLICY_FLAG) {
#ifdef GSS_C_DELEG_POLICY_FLAG
req_flags |= GSS_C_DELEG_POLICY_FLAG;
#else
infof(data, "warning: support for CURLGSSAPI_DELEGATION_POLICY_FLAG not "
"compiled in\n");
#endif
}
if(data->set.gssapi_delegation & CURLGSSAPI_DELEGATION_FLAG)
req_flags |= GSS_C_DELEG_FLAG;
return gss_init_sec_context(minor_status,
GSS_C_NO_CREDENTIAL,
context,
target_name,
mech_type,
req_flags,
0,
input_chan_bindings,
input_token,
NULL,
output_token,
ret_flags,
NULL );
}
#define GSS_LOG_BUFFER_LEN 1024
static size_t display_gss_error(OM_uint32 status, int type,
char *buf, size_t len) {
OM_uint32 maj_stat;
OM_uint32 min_stat;
OM_uint32 msg_ctx = 0;
gss_buffer_desc status_string;
do {
maj_stat = gss_display_status(&min_stat,
status,
type,
GSS_C_NO_OID,
&msg_ctx,
&status_string);
if(GSS_LOG_BUFFER_LEN > len + status_string.length + 3) {
len += msnprintf(buf + len, GSS_LOG_BUFFER_LEN - len,
"%.*s. ", (int)status_string.length,
(char *)status_string.value);
}
gss_release_buffer(&min_stat, &status_string);
} while(!GSS_ERROR(maj_stat) && msg_ctx != 0);
return len;
}
void Curl_gss_log_error(struct Curl_easy *data, const char *prefix,
OM_uint32 major, OM_uint32 minor)
{
char buf[GSS_LOG_BUFFER_LEN];
size_t len = 0;
if(major != GSS_S_FAILURE)
len = display_gss_error(major, GSS_C_GSS_CODE, buf, len);
display_gss_error(minor, GSS_C_MECH_CODE, buf, len);
infof(data, "%s%s\n", prefix, buf);
}
#endif