diff options
Diffstat (limited to 'Utilities/cmcurl/lib/curl_gssapi.c')
| -rw-r--r-- | Utilities/cmcurl/lib/curl_gssapi.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/Utilities/cmcurl/lib/curl_gssapi.c b/Utilities/cmcurl/lib/curl_gssapi.c new file mode 100644 index 0000000000..f007986c0d --- /dev/null +++ b/Utilities/cmcurl/lib/curl_gssapi.c @@ -0,0 +1,136 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 2011 - 2018, 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 https://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" + +#ifdef HAVE_GSSAPI + +#include "curl_gssapi.h" +#include "sendf.h" + +/* The last 3 #include files should be in this order */ +#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, &spnego_oid_bytes }; +static char krb5_oid_bytes[] = "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02"; +gss_OID_desc Curl_krb5_mech_oid = { 9, &krb5_oid_bytes }; + +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; + + 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, /* cred_handle */ + context, + target_name, + mech_type, + req_flags, + 0, /* time_req */ + input_chan_bindings, + input_token, + NULL, /* actual_mech_type */ + output_token, + ret_flags, + NULL /* time_rec */); +} + +#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 += snprintf(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; +} + +/* + * Curl_gss_log_error() + * + * This is used to log a GSS-API error status. + * + * Parameters: + * + * data [in] - The session handle. + * prefix [in] - The prefix of the log message. + * major [in] - The major status code. + * minor [in] - The minor status code. + */ +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 /* HAVE_GSSAPI */ |