/* GnuTLS glue for GNU Emacs.
- Copyright (C) 2010-2012 Free Software Foundation, Inc.
+ Copyright (C) 2010-2013 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <config.h>
#include <errno.h>
-#include <setjmp.h>
#include "lisp.h"
#include "process.h"
+#include "coding.h"
#ifdef HAVE_GNUTLS
#include <gnutls/gnutls.h>
#include "w32.h"
#endif
-static int
-emacs_gnutls_handle_error (gnutls_session_t, int err);
+static bool emacs_gnutls_handle_error (gnutls_session_t, int);
static Lisp_Object Qgnutls_dll;
static Lisp_Object Qgnutls_code;
static Lisp_Object Qgnutls_anon, Qgnutls_x509pki;
static Lisp_Object Qgnutls_e_interrupted, Qgnutls_e_again,
Qgnutls_e_invalid_session, Qgnutls_e_not_ready_for_handshake;
-static int gnutls_global_initialized;
+static bool gnutls_global_initialized;
/* The following are for the property list of `gnutls-boot'. */
static Lisp_Object QCgnutls_bootprop_priority;
static void gnutls_log_function (int, const char *);
static void gnutls_log_function2 (int, const char*, const char*);
+#ifdef HAVE_GNUTLS3
+static void gnutls_audit_log_function (gnutls_session_t, const char *);
+#endif
\f
#ifdef WINDOWSNT
DEF_GNUTLS_FN (int, gnutls_error_is_fatal, (int));
DEF_GNUTLS_FN (int, gnutls_global_init, (void));
DEF_GNUTLS_FN (void, gnutls_global_set_log_function, (gnutls_log_func));
+#ifdef HAVE_GNUTLS3
+DEF_GNUTLS_FN (void, gnutls_global_set_audit_log_function, (gnutls_audit_log_func));
+#endif
DEF_GNUTLS_FN (void, gnutls_global_set_log_level, (int));
DEF_GNUTLS_FN (void, gnutls_global_set_mem_functions,
(gnutls_alloc_function, gnutls_alloc_function,
gnutls_x509_crt_fmt_t));
DEF_GNUTLS_FN (int, gnutls_x509_crt_init, (gnutls_x509_crt_t *));
-static int
-init_gnutls_functions (Lisp_Object libraries)
+static bool
+init_gnutls_functions (void)
{
HMODULE library;
int max_log_level = 1;
- if (!(library = w32_delayed_load (libraries, Qgnutls_dll)))
+ if (!(library = w32_delayed_load (Qgnutls_dll)))
{
GNUTLS_LOG (1, max_log_level, "GnuTLS library not found");
return 0;
LOAD_GNUTLS_FN (library, gnutls_error_is_fatal);
LOAD_GNUTLS_FN (library, gnutls_global_init);
LOAD_GNUTLS_FN (library, gnutls_global_set_log_function);
+#ifdef HAVE_GNUTLS3
+ LOAD_GNUTLS_FN (library, gnutls_global_set_audit_log_function);
+#endif
LOAD_GNUTLS_FN (library, gnutls_global_set_log_level);
LOAD_GNUTLS_FN (library, gnutls_global_set_mem_functions);
LOAD_GNUTLS_FN (library, gnutls_handshake);
#define fn_gnutls_error_is_fatal gnutls_error_is_fatal
#define fn_gnutls_global_init gnutls_global_init
#define fn_gnutls_global_set_log_function gnutls_global_set_log_function
+#ifdef HAVE_GNUTLS3
+#define fn_gnutls_global_set_audit_log_function gnutls_global_set_audit_log_function
+#endif
#define fn_gnutls_global_set_log_level gnutls_global_set_log_level
#define fn_gnutls_global_set_mem_functions gnutls_global_set_mem_functions
#define fn_gnutls_handshake gnutls_handshake
#define fn_gnutls_record_recv gnutls_record_recv
#define fn_gnutls_record_send gnutls_record_send
#define fn_gnutls_strerror gnutls_strerror
+#ifdef WINDOWSNT
#define fn_gnutls_transport_set_errno gnutls_transport_set_errno
+#endif
#define fn_gnutls_transport_set_ptr2 gnutls_transport_set_ptr2
#define fn_gnutls_x509_crt_check_hostname gnutls_x509_crt_check_hostname
#define fn_gnutls_x509_crt_deinit gnutls_x509_crt_deinit
#endif /* !WINDOWSNT */
\f
+#ifdef HAVE_GNUTLS3
+/* Function to log a simple audit message. */
+static void
+gnutls_audit_log_function (gnutls_session_t session, const char* string)
+{
+ if (global_gnutls_log_level >= 1)
+ {
+ message ("gnutls.c: [audit] %s", string);
+ }
+}
+#endif
+
/* Function to log a simple message. */
static void
gnutls_log_function (int level, const char* string)
return fn_gnutls_record_check_pending (state);
}
+#ifdef WINDOWSNT
void
emacs_gnutls_transport_set_errno (gnutls_session_t state, int err)
{
fn_gnutls_transport_set_errno (state, err);
}
+#endif
ptrdiff_t
emacs_gnutls_write (struct Lisp_Process *proc, const char *buf, ptrdiff_t nbyte)
if (proc->gnutls_initstage != GNUTLS_STAGE_READY)
{
-#ifdef EWOULDBLOCK
- errno = EWOULDBLOCK;
-#endif
-#ifdef EAGAIN
errno = EAGAIN;
-#endif
return 0;
}
appropriately so that send_process retries the
correct way instead of erroring out. */
if (rtnval == GNUTLS_E_AGAIN)
- {
-#ifdef EWOULDBLOCK
- errno = EWOULDBLOCK;
-#endif
-#ifdef EAGAIN
- errno = EAGAIN;
-#endif
- }
+ errno = EAGAIN;
break;
}
}
else if (rtnval == GNUTLS_E_UNEXPECTED_PACKET_LENGTH)
/* The peer closed the connection. */
return 0;
- else if (emacs_gnutls_handle_error (state, rtnval) == 0)
+ else if (emacs_gnutls_handle_error (state, rtnval))
/* non-fatal error */
return -1;
else {
}
}
-/* report a GnuTLS error to the user.
- Returns zero if the error code was successfully handled. */
-static int
+/* Report a GnuTLS error to the user.
+ Return true if the error code was successfully handled. */
+static bool
emacs_gnutls_handle_error (gnutls_session_t session, int err)
{
int max_log_level = 0;
- int ret;
+ bool ret;
const char *str;
/* TODO: use a Lisp_Object generated by gnutls_make_error? */
if (err >= 0)
- return 0;
+ return 1;
max_log_level = global_gnutls_log_level;
if (fn_gnutls_error_is_fatal (err))
{
- ret = err;
+ ret = 0;
GNUTLS_LOG2 (0, max_log_level, "fatal error:", str);
}
else
{
- ret = 0;
- GNUTLS_LOG2 (1, max_log_level, "non-fatal error:", str);
- /* TODO: EAGAIN AKA Qgnutls_e_again should be level 2. */
+ ret = 1;
+
+ switch (err)
+ {
+ case GNUTLS_E_AGAIN:
+ GNUTLS_LOG2 (3,
+ max_log_level,
+ "retry:",
+ str);
+ default:
+ GNUTLS_LOG2 (1,
+ max_log_level,
+ "non-fatal error:",
+ str);
+ }
}
if (err == GNUTLS_E_WARNING_ALERT_RECEIVED
else
{
Lisp_Object status;
- status = init_gnutls_functions (Vdynamic_library_alist) ? Qt : Qnil;
+ status = init_gnutls_functions () ? Qt : Qnil;
Vlibrary_cache = Fcons (Fcons (Qgnutls_dll, status), Vlibrary_cache);
return status;
}
CHECK_LIST (proplist);
if (NILP (Fgnutls_available_p ()))
- {
- error ("GnuTLS not available");
- return gnutls_make_error (GNUTLS_EMACS_ERROR_NOT_LOADED);
- }
+ error ("GnuTLS not available");
if (!EQ (type, Qgnutls_x509pki) && !EQ (type, Qgnutls_anon))
- {
- error ("Invalid GnuTLS credential type");
- return gnutls_make_error (GNUTLS_EMACS_ERROR_INVALID_TYPE);
- }
+ error ("Invalid GnuTLS credential type");
hostname = Fplist_get (proplist, QCgnutls_bootprop_hostname);
priority_string = Fplist_get (proplist, QCgnutls_bootprop_priority);
c_hostname = SSDATA (hostname);
state = XPROCESS (proc)->gnutls_state;
- XPROCESS (proc)->gnutls_p = 1;
if (TYPE_RANGED_INTEGERP (int, loglevel))
{
fn_gnutls_global_set_log_function (gnutls_log_function);
+#ifdef HAVE_GNUTLS3
+ fn_gnutls_global_set_audit_log_function (gnutls_audit_log_function);
+#endif
fn_gnutls_global_set_log_level (XINT (loglevel));
max_log_level = XINT (loglevel);
XPROCESS (proc)->gnutls_log_level = max_log_level;
emacs_gnutls_deinit (proc);
/* Mark PROC as a GnuTLS process. */
- XPROCESS (proc)->gnutls_p = 1;
XPROCESS (proc)->gnutls_state = NULL;
XPROCESS (proc)->gnutls_x509_cred = NULL;
XPROCESS (proc)->gnutls_anon_cred = NULL;
- PSET (XPROCESS (proc), gnutls_cred_type, type);
+ pset_gnutls_cred_type (XPROCESS (proc), type);
GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_EMPTY;
GNUTLS_LOG (1, max_log_level, "allocating credentials");
{
GNUTLS_LOG2 (1, max_log_level, "setting the trustfile: ",
SSDATA (trustfile));
+ trustfile = ENCODE_FILE (trustfile);
+#ifdef WINDOWSNT
+ /* Since GnuTLS doesn't support UTF-8 or UTF-16 encoded
+ file names on Windows, we need to re-encode the file
+ name using the current ANSI codepage. */
+ trustfile = ansi_encode_filename (trustfile);
+#endif
ret = fn_gnutls_certificate_set_x509_trust_file
(x509_cred,
SSDATA (trustfile),
{
GNUTLS_LOG2 (1, max_log_level, "setting the CRL file: ",
SSDATA (crlfile));
+ crlfile = ENCODE_FILE (crlfile);
+#ifdef WINDOWSNT
+ crlfile = ansi_encode_filename (crlfile);
+#endif
ret = fn_gnutls_certificate_set_x509_crl_file
(x509_cred, SSDATA (crlfile), file_format);
SSDATA (keyfile));
GNUTLS_LOG2 (1, max_log_level, "setting the client cert file: ",
SSDATA (certfile));
+ keyfile = ENCODE_FILE (keyfile);
+ certfile = ENCODE_FILE (certfile);
+#ifdef WINDOWSNT
+ keyfile = ansi_encode_filename (keyfile);
+ certfile = ansi_encode_filename (certfile);
+#endif
ret = fn_gnutls_certificate_set_x509_key_file
(x509_cred, SSDATA (certfile), SSDATA (keyfile), file_format);
fn_gnutls_x509_crt_deinit (gnutls_verify_cert);
}
+ /* Set this flag only if the whole initialization succeeded. */
+ XPROCESS (proc)->gnutls_p = 1;
+
return gnutls_make_error (ret);
}
HCoop / bpt / emacs.git / blobdiff