/* GnuTLS glue for GNU Emacs.
- Copyright (C) 2010-2011 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 "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;
(gnutls_session_t, const void *, size_t));
DEF_GNUTLS_FN (const char *, gnutls_strerror, (int));
DEF_GNUTLS_FN (void, gnutls_transport_set_errno, (gnutls_session_t, int));
+DEF_GNUTLS_FN (const char *, gnutls_check_version, (const char *));
DEF_GNUTLS_FN (void, gnutls_transport_set_lowat, (gnutls_session_t, int));
DEF_GNUTLS_FN (void, gnutls_transport_set_ptr2,
(gnutls_session_t, gnutls_transport_ptr_t,
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_record_send);
LOAD_GNUTLS_FN (library, gnutls_strerror);
LOAD_GNUTLS_FN (library, gnutls_transport_set_errno);
- LOAD_GNUTLS_FN (library, gnutls_transport_set_lowat);
+ LOAD_GNUTLS_FN (library, gnutls_check_version);
+ /* We don't need to call gnutls_transport_set_lowat in GnuTLS 2.11.1
+ and later, and the function was removed entirely in 3.0.0. */
+ if (!fn_gnutls_check_version ("2.11.1"))
+ LOAD_GNUTLS_FN (library, gnutls_transport_set_lowat);
LOAD_GNUTLS_FN (library, gnutls_transport_set_ptr2);
LOAD_GNUTLS_FN (library, gnutls_transport_set_pull_function);
LOAD_GNUTLS_FN (library, gnutls_transport_set_push_function);
max_log_level = global_gnutls_log_level;
- GNUTLS_LOG2 (1, max_log_level, "GnuTLS library loaded:",
- SDATA (Fget (Qgnutls_dll, QCloaded_from)));
+ {
+ Lisp_Object name = CAR_SAFE (Fget (Qgnutls_dll, QCloaded_from));
+ GNUTLS_LOG2 (1, max_log_level, "GnuTLS library loaded:",
+ STRINGP (name) ? (const char *) SDATA (name) : "unknown");
+ }
+
return 1;
}
#endif /* !WINDOWSNT */
\f
+/* Function to log a simple message. */
static void
gnutls_log_function (int level, const char* string)
{
message ("gnutls.c: [%d] %s", level, string);
}
+/* Function to log a message and a string. */
static void
gnutls_log_function2 (int level, const char* string, const char* extra)
{
message ("gnutls.c: [%d] %s %s", level, string, extra);
}
+/* Function to log a message and an integer. */
+static void
+gnutls_log_function2i (int level, const char* string, int extra)
+{
+ message ("gnutls.c: [%d] %s %d", level, string, extra);
+}
+
static int
emacs_gnutls_handshake (struct Lisp_Process *proc)
{
(Note: this is probably not strictly necessary as the lowat
value is only used when no custom pull/push functions are
set.) */
- fn_gnutls_transport_set_lowat (state, 0);
+ /* According to GnuTLS NEWS file, lowat level has been set to
+ zero by default in version 2.11.1, and the function
+ gnutls_transport_set_lowat was removed from the library in
+ version 2.99.0. */
+ if (!fn_gnutls_check_version ("2.11.1"))
+ fn_gnutls_transport_set_lowat (state, 0);
#else
/* This is how GnuTLS takes sockets: as file descriptors passed
in. For an Emacs process socket, infd and outfd are the
{
ret = fn_gnutls_handshake (state);
emacs_gnutls_handle_error (state, ret);
+ QUIT;
}
while (ret < 0 && fn_gnutls_error_is_fatal (ret) == 0);
ptrdiff_t bytes_written;
gnutls_session_t state = proc->gnutls_state;
- if (proc->gnutls_initstage != GNUTLS_STAGE_READY) {
+ if (proc->gnutls_initstage != GNUTLS_STAGE_READY)
+ {
#ifdef EWOULDBLOCK
- errno = EWOULDBLOCK;
+ errno = EWOULDBLOCK;
#endif
#ifdef EAGAIN
- errno = EAGAIN;
+ errno = EAGAIN;
#endif
- return 0;
- }
+ return 0;
+ }
bytes_written = 0;
if (rtnval < 0)
{
- if (rtnval == GNUTLS_E_AGAIN || rtnval == GNUTLS_E_INTERRUPTED)
+ if (rtnval == GNUTLS_E_INTERRUPTED)
continue;
else
- break;
+ {
+ /* If we get GNUTLS_E_AGAIN, then set errno
+ 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
+ }
+ break;
+ }
}
buf += rtnval;
ssize_t rtnval;
gnutls_session_t state = proc->gnutls_state;
+ int log_level = proc->gnutls_log_level;
+
if (proc->gnutls_initstage != GNUTLS_STAGE_READY)
{
- emacs_gnutls_handshake (proc);
- return -1;
+ /* If the handshake count is under the limit, try the handshake
+ again and increment the handshake count. This count is kept
+ per process (connection), not globally. */
+ if (proc->gnutls_handshakes_tried < GNUTLS_EMACS_HANDSHAKES_LIMIT)
+ {
+ proc->gnutls_handshakes_tried++;
+ emacs_gnutls_handshake (proc);
+ GNUTLS_LOG2i (5, log_level, "Retried handshake",
+ proc->gnutls_handshakes_tried);
+ return -1;
+ }
+
+ GNUTLS_LOG (2, log_level, "Giving up on handshake; resetting retries");
+ proc->gnutls_handshakes_tried = 0;
+ return 0;
}
rtnval = fn_gnutls_record_recv (state, buf, nbyte);
if (rtnval >= 0)
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;
+ ret = 1;
GNUTLS_LOG2 (1, max_log_level, "non-fatal error:", str);
/* TODO: EAGAIN AKA Qgnutls_e_again should be level 2. */
}
return make_number (err);
}
+Lisp_Object
+emacs_gnutls_deinit (Lisp_Object proc)
+{
+ int log_level;
+
+ CHECK_PROCESS (proc);
+
+ if (XPROCESS (proc)->gnutls_p == 0)
+ return Qnil;
+
+ log_level = XPROCESS (proc)->gnutls_log_level;
+
+ if (XPROCESS (proc)->gnutls_x509_cred)
+ {
+ GNUTLS_LOG (2, log_level, "Deallocating x509 credentials");
+ fn_gnutls_certificate_free_credentials (XPROCESS (proc)->gnutls_x509_cred);
+ XPROCESS (proc)->gnutls_x509_cred = NULL;
+ }
+
+ if (XPROCESS (proc)->gnutls_anon_cred)
+ {
+ GNUTLS_LOG (2, log_level, "Deallocating anon credentials");
+ fn_gnutls_anon_free_client_credentials (XPROCESS (proc)->gnutls_anon_cred);
+ XPROCESS (proc)->gnutls_anon_cred = NULL;
+ }
+
+ if (XPROCESS (proc)->gnutls_state)
+ {
+ fn_gnutls_deinit (XPROCESS (proc)->gnutls_state);
+ XPROCESS (proc)->gnutls_state = NULL;
+ if (GNUTLS_INITSTAGE (proc) >= GNUTLS_STAGE_INIT)
+ GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_INIT - 1;
+ }
+
+ XPROCESS (proc)->gnutls_p = 0;
+ return Qt;
+}
+
DEFUN ("gnutls-get-initstage", Fgnutls_get_initstage, Sgnutls_get_initstage, 1, 1, 0,
doc: /* Return the GnuTLS init stage of process PROC.
See also `gnutls-boot'. */)
See also `gnutls-init'. */)
(Lisp_Object proc)
{
- gnutls_session_t state;
-
- CHECK_PROCESS (proc);
- state = XPROCESS (proc)->gnutls_state;
-
- if (GNUTLS_INITSTAGE (proc) >= GNUTLS_STAGE_INIT)
- {
- fn_gnutls_deinit (state);
- GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_INIT - 1;
- }
-
- return Qt;
+ return emacs_gnutls_deinit (proc);
}
DEFUN ("gnutls-available-p", Fgnutls_available_p, Sgnutls_available_p, 0, 0, 0,
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;
}
DEFUN ("gnutls-boot", Fgnutls_boot, Sgnutls_boot, 3, 3, 0,
doc: /* Initialize GnuTLS client for process PROC with TYPE+PROPLIST.
-Currently only client mode is supported. Returns a success/failure
+Currently only client mode is supported. Return a success/failure
value you can check with `gnutls-errorp'.
TYPE is a symbol, either `gnutls-anon' or `gnutls-x509pki'.
(Lisp_Object proc, Lisp_Object type, Lisp_Object proplist)
{
int ret = GNUTLS_E_SUCCESS;
-
int max_log_level = 0;
- /* TODO: GNUTLS_X509_FMT_DER is also an option. */
- int file_format = GNUTLS_X509_FMT_PEM;
-
- unsigned int gnutls_verify_flags = GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT;
- gnutls_x509_crt_t gnutls_verify_cert;
- unsigned int gnutls_verify_cert_list_size;
- const gnutls_datum_t *gnutls_verify_cert_list;
-
gnutls_session_t state;
- gnutls_certificate_credentials_t x509_cred;
- gnutls_anon_client_credentials_t anon_cred;
+ gnutls_certificate_credentials_t x509_cred = NULL;
+ gnutls_anon_client_credentials_t anon_cred = NULL;
Lisp_Object global_init;
char const *priority_string_ptr = "NORMAL"; /* default priority string. */
- Lisp_Object tail;
unsigned int peer_verification;
char* c_hostname;
/* Lisp_Object callbacks; */
Lisp_Object loglevel;
Lisp_Object hostname;
- Lisp_Object verify_flags;
/* Lisp_Object verify_error; */
Lisp_Object verify_hostname_error;
Lisp_Object prime_bits;
return gnutls_make_error (GNUTLS_EMACS_ERROR_NOT_LOADED);
}
+ if (!EQ (type, Qgnutls_x509pki) && !EQ (type, Qgnutls_anon))
+ {
+ error ("Invalid GnuTLS credential type");
+ return gnutls_make_error (GNUTLS_EMACS_ERROR_INVALID_TYPE);
+ }
+
hostname = Fplist_get (proplist, QCgnutls_bootprop_hostname);
priority_string = Fplist_get (proplist, QCgnutls_bootprop_priority);
trustfiles = Fplist_get (proplist, QCgnutls_bootprop_trustfiles);
keylist = Fplist_get (proplist, QCgnutls_bootprop_keylist);
crlfiles = Fplist_get (proplist, QCgnutls_bootprop_crlfiles);
- /* callbacks = Fplist_get (proplist, QCgnutls_bootprop_callbacks); */
loglevel = Fplist_get (proplist, QCgnutls_bootprop_loglevel);
- verify_flags = Fplist_get (proplist, QCgnutls_bootprop_verify_flags);
- /* verify_error = Fplist_get (proplist, QCgnutls_bootprop_verify_error); */
verify_hostname_error = Fplist_get (proplist, QCgnutls_bootprop_verify_hostname_error);
prime_bits = Fplist_get (proplist, QCgnutls_bootprop_min_prime_bits);
if (!STRINGP (hostname))
error ("gnutls-boot: invalid :hostname parameter");
-
c_hostname = SSDATA (hostname);
state = XPROCESS (proc)->gnutls_state;
if (! NILP (Fgnutls_errorp (global_init)))
return global_init;
- /* deinit and free resources. */
- if (GNUTLS_INITSTAGE (proc) >= GNUTLS_STAGE_CRED_ALLOC)
- {
- GNUTLS_LOG (1, max_log_level, "deallocating credentials");
-
- if (EQ (type, Qgnutls_x509pki))
- {
- GNUTLS_LOG (2, max_log_level, "deallocating x509 credentials");
- x509_cred = XPROCESS (proc)->gnutls_x509_cred;
- fn_gnutls_certificate_free_credentials (x509_cred);
- }
- else if (EQ (type, Qgnutls_anon))
- {
- GNUTLS_LOG (2, max_log_level, "deallocating anon credentials");
- anon_cred = XPROCESS (proc)->gnutls_anon_cred;
- fn_gnutls_anon_free_client_credentials (anon_cred);
- }
- else
- {
- error ("unknown credential type");
- ret = GNUTLS_EMACS_ERROR_INVALID_TYPE;
- }
-
- if (GNUTLS_INITSTAGE (proc) >= GNUTLS_STAGE_INIT)
- {
- GNUTLS_LOG (1, max_log_level, "deallocating x509 credentials");
- Fgnutls_deinit (proc);
- }
- }
+ /* Before allocating new credentials, deallocate any credentials
+ that PROC might already have. */
+ 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_gnutls_cred_type (XPROCESS (proc), type);
GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_EMPTY;
GNUTLS_LOG (1, max_log_level, "allocating credentials");
-
if (EQ (type, Qgnutls_x509pki))
{
+ Lisp_Object verify_flags;
+ unsigned int gnutls_verify_flags = GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT;
+
GNUTLS_LOG (2, max_log_level, "allocating x509 credentials");
- x509_cred = XPROCESS (proc)->gnutls_x509_cred;
fn_gnutls_certificate_allocate_credentials (&x509_cred);
+ XPROCESS (proc)->gnutls_x509_cred = x509_cred;
+ verify_flags = Fplist_get (proplist, QCgnutls_bootprop_verify_flags);
if (NUMBERP (verify_flags))
{
gnutls_verify_flags = XINT (verify_flags);
GNUTLS_LOG (2, max_log_level, "setting verification flags");
}
else if (NILP (verify_flags))
- {
- /* The default is already GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT. */
- GNUTLS_LOG (2, max_log_level, "using default verification flags");
- }
+ GNUTLS_LOG (2, max_log_level, "using default verification flags");
else
- {
- /* The default is already GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT. */
- GNUTLS_LOG (2, max_log_level, "ignoring invalid verify-flags");
- }
+ GNUTLS_LOG (2, max_log_level, "ignoring invalid verify-flags");
+
fn_gnutls_certificate_set_verify_flags (x509_cred, gnutls_verify_flags);
}
- else if (EQ (type, Qgnutls_anon))
+ else /* Qgnutls_anon: */
{
GNUTLS_LOG (2, max_log_level, "allocating anon credentials");
- anon_cred = XPROCESS (proc)->gnutls_anon_cred;
fn_gnutls_anon_allocate_client_credentials (&anon_cred);
+ XPROCESS (proc)->gnutls_anon_cred = anon_cred;
}
- else
- {
- error ("unknown credential type");
- ret = GNUTLS_EMACS_ERROR_INVALID_TYPE;
- }
-
- if (ret < GNUTLS_E_SUCCESS)
- return gnutls_make_error (ret);
GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_CRED_ALLOC;
if (EQ (type, Qgnutls_x509pki))
{
- for (tail = trustfiles; !NILP (tail); tail = Fcdr (tail))
+ /* TODO: GNUTLS_X509_FMT_DER is also an option. */
+ int file_format = GNUTLS_X509_FMT_PEM;
+ Lisp_Object tail;
+
+ for (tail = trustfiles; CONSP (tail); tail = XCDR (tail))
{
- Lisp_Object trustfile = Fcar (tail);
+ Lisp_Object trustfile = XCAR (tail);
if (STRINGP (trustfile))
{
GNUTLS_LOG2 (1, max_log_level, "setting the trustfile: ",
}
else
{
- error ("Sorry, GnuTLS can't use non-string trustfile %s",
- SDATA (trustfile));
+ emacs_gnutls_deinit (proc);
+ error ("Invalid trustfile");
}
}
- for (tail = crlfiles; !NILP (tail); tail = Fcdr (tail))
+ for (tail = crlfiles; CONSP (tail); tail = XCDR (tail))
{
- Lisp_Object crlfile = Fcar (tail);
+ Lisp_Object crlfile = XCAR (tail);
if (STRINGP (crlfile))
{
GNUTLS_LOG2 (1, max_log_level, "setting the CRL file: ",
SSDATA (crlfile));
ret = fn_gnutls_certificate_set_x509_crl_file
- (x509_cred,
- SSDATA (crlfile),
- file_format);
+ (x509_cred, SSDATA (crlfile), file_format);
if (ret < GNUTLS_E_SUCCESS)
return gnutls_make_error (ret);
}
else
{
- error ("Sorry, GnuTLS can't use non-string CRL file %s",
- SDATA (crlfile));
+ emacs_gnutls_deinit (proc);
+ error ("Invalid CRL file");
}
}
- for (tail = keylist; !NILP (tail); tail = Fcdr (tail))
+ for (tail = keylist; CONSP (tail); tail = XCDR (tail))
{
- Lisp_Object keyfile = Fcar (Fcar (tail));
- Lisp_Object certfile = Fcar (Fcdr (tail));
+ Lisp_Object keyfile = Fcar (XCAR (tail));
+ Lisp_Object certfile = Fcar (Fcdr (XCAR (tail)));
if (STRINGP (keyfile) && STRINGP (certfile))
{
GNUTLS_LOG2 (1, max_log_level, "setting the client key file: ",
GNUTLS_LOG2 (1, max_log_level, "setting the client cert file: ",
SSDATA (certfile));
ret = fn_gnutls_certificate_set_x509_key_file
- (x509_cred,
- SSDATA (certfile),
- SSDATA (keyfile),
- file_format);
+ (x509_cred, SSDATA (certfile), SSDATA (keyfile), file_format);
if (ret < GNUTLS_E_SUCCESS)
return gnutls_make_error (ret);
}
else
{
- if (STRINGP (keyfile))
- error ("Sorry, GnuTLS can't use non-string client cert file %s",
- SDATA (certfile));
- else
- error ("Sorry, GnuTLS can't use non-string client key file %s",
- SDATA (keyfile));
+ emacs_gnutls_deinit (proc);
+ error (STRINGP (keyfile) ? "Invalid client cert file"
+ : "Invalid client key file");
}
}
}
GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_FILES;
-
GNUTLS_LOG (1, max_log_level, "gnutls callbacks");
-
GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_CALLBACKS;
-#ifdef HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY
-#else
-#endif
+ /* Call gnutls_init here: */
GNUTLS_LOG (1, max_log_level, "gnutls_init");
-
ret = fn_gnutls_init (&state, GNUTLS_CLIENT);
-
+ XPROCESS (proc)->gnutls_state = state;
if (ret < GNUTLS_E_SUCCESS)
return gnutls_make_error (ret);
-
- XPROCESS (proc)->gnutls_state = state;
-
GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_INIT;
if (STRINGP (priority_string))
}
GNUTLS_LOG (1, max_log_level, "setting the priority string");
-
ret = fn_gnutls_priority_set_direct (state,
priority_string_ptr,
NULL);
-
if (ret < GNUTLS_E_SUCCESS)
return gnutls_make_error (ret);
GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_PRIORITY;
- if (!EQ (prime_bits, Qnil))
- {
- fn_gnutls_dh_set_prime_bits (state, XUINT (prime_bits));
- }
-
- if (EQ (type, Qgnutls_x509pki))
- {
- ret = fn_gnutls_credentials_set (state, GNUTLS_CRD_CERTIFICATE, x509_cred);
- }
- else if (EQ (type, Qgnutls_anon))
- {
- ret = fn_gnutls_credentials_set (state, GNUTLS_CRD_ANON, anon_cred);
- }
- else
- {
- error ("unknown credential type");
- ret = GNUTLS_EMACS_ERROR_INVALID_TYPE;
- }
+ if (INTEGERP (prime_bits))
+ fn_gnutls_dh_set_prime_bits (state, XUINT (prime_bits));
+ ret = EQ (type, Qgnutls_x509pki)
+ ? fn_gnutls_credentials_set (state, GNUTLS_CRD_CERTIFICATE, x509_cred)
+ : fn_gnutls_credentials_set (state, GNUTLS_CRD_ANON, anon_cred);
if (ret < GNUTLS_E_SUCCESS)
return gnutls_make_error (ret);
- XPROCESS (proc)->gnutls_anon_cred = anon_cred;
- XPROCESS (proc)->gnutls_x509_cred = x509_cred;
- XPROCESS (proc)->gnutls_cred_type = type;
-
GNUTLS_INITSTAGE (proc) = GNUTLS_STAGE_CRED_SET;
-
ret = emacs_gnutls_handshake (XPROCESS (proc));
-
if (ret < GNUTLS_E_SUCCESS)
return gnutls_make_error (ret);
gnutls_x509_crt_check_hostname() against :hostname. */
ret = fn_gnutls_certificate_verify_peers2 (state, &peer_verification);
-
if (ret < GNUTLS_E_SUCCESS)
return gnutls_make_error (ret);
if (XINT (loglevel) > 0 && peer_verification & GNUTLS_CERT_INVALID)
- message ("%s certificate could not be verified.",
- c_hostname);
-
- if (peer_verification & GNUTLS_CERT_REVOKED)
- GNUTLS_LOG2 (1, max_log_level, "certificate was revoked (CRL):",
- c_hostname);
-
- if (peer_verification & GNUTLS_CERT_SIGNER_NOT_FOUND)
- GNUTLS_LOG2 (1, max_log_level, "certificate signer was not found:",
- c_hostname);
-
- if (peer_verification & GNUTLS_CERT_SIGNER_NOT_CA)
- GNUTLS_LOG2 (1, max_log_level, "certificate signer is not a CA:",
- c_hostname);
-
- if (peer_verification & GNUTLS_CERT_INSECURE_ALGORITHM)
- GNUTLS_LOG2 (1, max_log_level,
- "certificate was signed with an insecure algorithm:",
- c_hostname);
-
- if (peer_verification & GNUTLS_CERT_NOT_ACTIVATED)
- GNUTLS_LOG2 (1, max_log_level, "certificate is not yet activated:",
- c_hostname);
-
- if (peer_verification & GNUTLS_CERT_EXPIRED)
- GNUTLS_LOG2 (1, max_log_level, "certificate has expired:",
- c_hostname);
-
- if (peer_verification != 0)
- {
- if (NILP (verify_hostname_error))
- {
- GNUTLS_LOG2 (1, max_log_level, "certificate validation failed:",
- c_hostname);
- }
- else
- {
- error ("Certificate validation failed %s, verification code %d",
- c_hostname, peer_verification);
- }
- }
+ message ("%s certificate could not be verified.", c_hostname);
+
+ if (peer_verification & GNUTLS_CERT_REVOKED)
+ GNUTLS_LOG2 (1, max_log_level, "certificate was revoked (CRL):",
+ c_hostname);
+
+ if (peer_verification & GNUTLS_CERT_SIGNER_NOT_FOUND)
+ GNUTLS_LOG2 (1, max_log_level, "certificate signer was not found:",
+ c_hostname);
+
+ if (peer_verification & GNUTLS_CERT_SIGNER_NOT_CA)
+ GNUTLS_LOG2 (1, max_log_level, "certificate signer is not a CA:",
+ c_hostname);
+
+ if (peer_verification & GNUTLS_CERT_INSECURE_ALGORITHM)
+ GNUTLS_LOG2 (1, max_log_level,
+ "certificate was signed with an insecure algorithm:",
+ c_hostname);
+
+ if (peer_verification & GNUTLS_CERT_NOT_ACTIVATED)
+ GNUTLS_LOG2 (1, max_log_level, "certificate is not yet activated:",
+ c_hostname);
+
+ if (peer_verification & GNUTLS_CERT_EXPIRED)
+ GNUTLS_LOG2 (1, max_log_level, "certificate has expired:",
+ c_hostname);
+
+ if (peer_verification != 0)
+ {
+ if (NILP (verify_hostname_error))
+ GNUTLS_LOG2 (1, max_log_level, "certificate validation failed:",
+ c_hostname);
+ else
+ {
+ emacs_gnutls_deinit (proc);
+ error ("Certificate validation failed %s, verification code %d",
+ c_hostname, peer_verification);
+ }
+ }
/* Up to here the process is the same for X.509 certificates and
OpenPGP keys. From now on X.509 certificates are assumed. This
can be easily extended to work with openpgp keys as well. */
if (fn_gnutls_certificate_type_get (state) == GNUTLS_CRT_X509)
{
- ret = fn_gnutls_x509_crt_init (&gnutls_verify_cert);
+ gnutls_x509_crt_t gnutls_verify_cert;
+ const gnutls_datum_t *gnutls_verify_cert_list;
+ unsigned int gnutls_verify_cert_list_size;
+ ret = fn_gnutls_x509_crt_init (&gnutls_verify_cert);
if (ret < GNUTLS_E_SUCCESS)
return gnutls_make_error (ret);
gnutls_verify_cert_list =
fn_gnutls_certificate_get_peers (state, &gnutls_verify_cert_list_size);
- if (NULL == gnutls_verify_cert_list)
+ if (gnutls_verify_cert_list == NULL)
{
- error ("No x509 certificate was found!\n");
+ fn_gnutls_x509_crt_deinit (gnutls_verify_cert);
+ emacs_gnutls_deinit (proc);
+ error ("No x509 certificate was found\n");
}
/* We only check the first certificate in the given chain. */
if (!fn_gnutls_x509_crt_check_hostname (gnutls_verify_cert, c_hostname))
{
if (NILP (verify_hostname_error))
- {
- GNUTLS_LOG2 (1, max_log_level, "x509 certificate does not match:",
- c_hostname);
- }
+ GNUTLS_LOG2 (1, max_log_level, "x509 certificate does not match:",
+ c_hostname);
else
{
fn_gnutls_x509_crt_deinit (gnutls_verify_cert);
- error ("The x509 certificate does not match \"%s\"",
- c_hostname);
+ emacs_gnutls_deinit (proc);
+ error ("The x509 certificate does not match \"%s\"", c_hostname);
}
}
-
fn_gnutls_x509_crt_deinit (gnutls_verify_cert);
}
defsubr (&Sgnutls_available_p);
DEFVAR_INT ("gnutls-log-level", global_gnutls_log_level,
- doc: /* Logging level used by the GnuTLS functions. */);
+ doc: /* Logging level used by the GnuTLS functions.
+Set this larger than 0 to get debug output in the *Messages* buffer.
+1 is for important messages, 2 is for debug data, and higher numbers
+are as per the GnuTLS logging conventions. */);
global_gnutls_log_level = 0;
}