void Curl_http_ntlm_cleanup(struct connectdata *conn)
{
Curl_sasl_ntlm_cleanup(&conn->ntlm);
Curl_sasl_ntlm_cleanup(&conn->proxyntlm);
#if defined(NTLM_WB_ENABLED)
Curl_ntlm_wb_cleanup(conn);
#endif
}
void Curl_http_ntlm_cleanup(struct connectdata *conn)
{
#ifdef USE_WINDOWS_SSPI
Curl_ntlm_sspi_cleanup(&conn->ntlm);
Curl_ntlm_sspi_cleanup(&conn->proxyntlm);
#elif defined(NTLM_WB_ENABLED)
Curl_ntlm_wb_cleanup(conn);
#else
(void)conn;
#endif
}
void Curl_http_ntlm_cleanup(struct connectdata *conn)
{
#ifdef USE_WINDOWS_SSPI
Curl_ntlm_sspi_cleanup(&conn->ntlm);
Curl_ntlm_sspi_cleanup(&conn->proxyntlm);
#elif defined(NTLM_WB_ENABLED)
Curl_ntlm_wb_cleanup(conn);
#else
(void)conn;
#endif
#ifndef USE_WINDOWS_SSPI
Curl_safefree(conn->ntlm.target_info);
conn->ntlm.target_info_len = 0;
Curl_safefree(conn->proxyntlm.target_info);
conn->proxyntlm.target_info_len = 0;
#endif
}
/*
* This is for creating ntlm header output by delegating challenge/response
* to Samba's winbind daemon helper ntlm_auth.
*/
CURLcode Curl_output_ntlm_wb(struct connectdata *conn,
bool proxy)
{
/* point to the address of the pointer that holds the string to send to the
server, which is for a plain host or for a HTTP proxy */
char **allocuserpwd;
/* point to the name and password for this */
const char *userp;
/* point to the correct struct with this */
struct ntlmdata *ntlm;
struct auth *authp;
CURLcode res = CURLE_OK;
char *input;
DEBUGASSERT(conn);
DEBUGASSERT(conn->data);
if(proxy) {
allocuserpwd = &conn->allocptr.proxyuserpwd;
userp = conn->proxyuser;
ntlm = &conn->proxyntlm;
authp = &conn->data->state.authproxy;
}
else {
allocuserpwd = &conn->allocptr.userpwd;
userp = conn->user;
ntlm = &conn->ntlm;
authp = &conn->data->state.authhost;
}
authp->done = FALSE;
/* not set means empty */
if(!userp)
userp="";
switch(ntlm->state) {
case NTLMSTATE_TYPE1:
default:
/* Use Samba's 'winbind' daemon to support NTLM authentication,
* by delegating the NTLM challenge/response protocal to a helper
* in ntlm_auth.
* http://devel.squid-cache.org/ntlm/squid_helper_protocol.html
* https://www.samba.org/samba/docs/man/manpages-3/winbindd.8.html
* https://www.samba.org/samba/docs/man/manpages-3/ntlm_auth.1.html
* Preprocessor symbol 'NTLM_WB_ENABLED' is defined when this
* feature is enabled and 'NTLM_WB_FILE' symbol holds absolute
* filename of ntlm_auth helper.
* If NTLM authentication using winbind fails, go back to original
* request handling process.
*/
/* Create communication with ntlm_auth */
res = ntlm_wb_init(conn, userp);
if(res)
return res;
res = ntlm_wb_response(conn, "YR\n", ntlm->state);
if(res)
return res;
free(*allocuserpwd);
*allocuserpwd = aprintf("%sAuthorization: %s\r\n",
proxy ? "Proxy-" : "",
conn->response_header);
DEBUG_OUT(fprintf(stderr, "**** Header %s\n ", *allocuserpwd));
free(conn->response_header);
conn->response_header = NULL;
break;
case NTLMSTATE_TYPE2:
input = aprintf("TT %s\n", conn->challenge_header);
if(!input)
return CURLE_OUT_OF_MEMORY;
res = ntlm_wb_response(conn, input, ntlm->state);
free(input);
input = NULL;
if(res)
return res;
free(*allocuserpwd);
*allocuserpwd = aprintf("%sAuthorization: %s\r\n",
proxy ? "Proxy-" : "",
conn->response_header);
DEBUG_OUT(fprintf(stderr, "**** %s\n ", *allocuserpwd));
ntlm->state = NTLMSTATE_TYPE3; /* we sent a type-3 */
authp->done = TRUE;
Curl_ntlm_wb_cleanup(conn);
break;
case NTLMSTATE_TYPE3:
/* connection is already authenticated,
* don't send a header in future requests */
free(*allocuserpwd);
*allocuserpwd=NULL;
authp->done = TRUE;
break;
}
return CURLE_OK;
}
