/
SSLeay.xs
5880 lines (4949 loc) · 140 KB
/
SSLeay.xs
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/* SSLeay.xs - Perl module for using Eric Young's implementation of SSL
*
* Copyright (c) 1996-2002 Sampo Kellomaki <sampo@iki.fi>
* Copyright (C) 2005 Florian Ragwitz <rafl@debian.org>
* Copyright (C) 2005 Mike McCauley <mikem@airspayce.com>
*
* All Rights Reserved.
*
* Change data removed. See Changes
*
* $Id: SSLeay.xs 426 2014-08-21 01:08:36Z mikem-guest $
*
* The distribution and use of this module are subject to the conditions
* listed in LICENSE file at the root of the Net-SSLeay
* distribution (i.e. same license as Perl itself).
*/
/* ####
* #### PLEASE READ THE FOLLOWING RULES BEFORE YOU START EDITING THIS FILE! ####
* ####
*
* Function naming conventions:
*
* 1/ never change the already existing function names (all calling convention) in a way
* that may cause backward incompatibility (e.g. add ALIAS with old name if necessary)
*
* 2/ it is recommended to keep the original openssl function names for functions that are:
*
* 1:1 wrappers to the original openssl functions
* see for example: X509_get_issuer_name(cert) >> Net::SSLeay::X509_get_issuer_name($cert)
*
* nearly 1:1 wrappers implementing only necessary "glue" e.g. buffer handling
* see for example: RAND_seed(buf,len) >> Net::SSLeay::RAND_seed($buf)
*
* 3/ OpenSSL functions starting with "SSL_" are added into SSLeay.xs with "SLL_" prefix
* (e.g. SSL_CTX_new) but keep in mind that they will be available in Net::SSLeay without
* "SSL_" prefix (e.g. Net::SSLeay::CTX_new) - keep this for all new functions
*
* 4/ The names of functions which do not fit rule 2/ (which means they implement some non
* trivial code around original openssl function or do more complex tasks) should be
* prefixed with "P_" - see for example: P_ASN1_TIME_set_isotime
*
* 5/ Exceptions from rules above:
* functions that are part or wider set of already existing function not following this rule
* for example: there already exists: PEM_get_string_X509_CRL + PEM_get_string_X509_REQ and you want
* to add PEM_get_string_SOMETHING - then no need to follow 3/ (do not prefix with "P_")
*
* Support for different openssl versions, different platforms, different compilers:
*
* 1/ SSleay.xs is expected to build/pass test suite
* - with openssl 0.9.6 and newer versions
* - with perl 5.8 and newer versions
*
* 2/ Fix all compiler warnings - we expect 100% clean build
*
* 3/ If you add a function which is available since certain openssl version
* use proper #ifdefs to assure that SSLeay.xs will compile also with older versions
* which are missing this function
*
* 4/ Even warnings arising from different use of "const" in different openssl versions
* needs to be hanled with #ifdefs - see for example: X509_NAME_add_entry_by_txt
*
* 5/ avoid using global C variables (it is very likely to break thread-safetyness)
* use rather global MY_CXT structure
*
* 6/ avoid using any UNIX/POSIX specific functions, keep in mind that SSLeay.xs must
* compile also on non-UNIX platforms like MS Windows and others
*
* 7/ avoid using c++ comments "//" (or other c++ features accepted by some c compiler)
* even if your compiler can handle them without warnings
*
* Passing test suite:
*
* 1/ any changes to SSLeay.xs must not introduce a failure of existing test suite
*
* 2/ it is strongly recommended to create test(s) for newly added function(s), especially
* when the new function is not only a 1:1 wrapper but contains a complex code
*
* 3/ it is mandatory to add a documentation for all newly added functions into SSLeay.pod
* otherwise t/local/02_pod_coverage.t fail (and you will be asked to add some doc into
* your patch)
*
* Preferred code layout:
*
* 1/ for simple 1:1 XS wrappers use:
*
* a/ functions with short "signature" (short list of args):
*
* long
* SSL_set_tmp_dh(SSL *ssl,DH *dh)
*
* b/ functions with long "signature" (long list of args):
* simply when approach a/ does not fit to 120 columns
*
* void
* SSL_any_functions(library_flag,function_name,reason,file_name,line)
* int library_flag
* int function_name
* int reason
* char *file_name
* int line
*
* 2/ for XS functions with full implementation use identation like this:
*
* int
* RAND_bytes(buf, num)
* SV *buf
* int num
* PREINIT:
* int rc;
* unsigned char *random;
* CODE:
* / * some code here * /
* RETVAL = rc;
* OUTPUT:
* RETVAL
*
*
* Runtime debugging:
*
* with TRACE(level,fmt,...) you can output debug messages.
* it behaves the same as
* warn sprintf($msg,...) if $Net::SSLeay::trace>=$level
* would do in Perl (e.g. it is using also the $Net::SSLeay::trace variable)
*
*
* THE LAST RULE:
*
* The fact that some parts of SSLeay.xs do not follow the rules above is not
* a reason why any new code can also break these rules in the same way
*
*/
/* Prevent warnings about strncpy from Windows compilers */
#define _CRT_SECURE_NO_DEPRECATE
#ifdef __cplusplus
extern "C" {
#endif
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include <stdarg.h>
#define NEED_newRV_noinc
#define NEED_sv_2pv_flags
#define NEED_my_snprintf
#include "ppport.h"
#ifdef __cplusplus
}
#endif
/* OpenSSL-0.9.3a has some strange warning about this in
* openssl/des.h
*/
#undef _
/* Sigh: openssl 1.0 has
typedef void *BLOCK;
which conflicts with perls
typedef struct block BLOCK;
*/
#define BLOCK OPENSSL_BLOCK
#include <openssl/err.h>
#include <openssl/lhash.h>
#include <openssl/rand.h>
#include <openssl/buffer.h>
#include <openssl/ssl.h>
#include <openssl/pkcs12.h>
#include <openssl/comp.h> /* openssl-0.9.6a forgets to include this */
#ifndef OPENSSL_NO_MD2
#include <openssl/md2.h>
#endif
#include <openssl/md4.h>
#include <openssl/md5.h> /* openssl-SNAP-20020227 does not automatically include this */
#if OPENSSL_VERSION_NUMBER >= 0x00905000L
#include <openssl/ripemd.h>
#endif
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#if OPENSSL_VERSION_NUMBER >= 0x0090700fL
/* requires 0.9.7+ */
#include <openssl/engine.h>
#endif
#ifdef OPENSSL_FIPS
#include <openssl/fips.h>
#endif
#if OPENSSL_VERSION_NUMBER >= 0x10000000L
#include <openssl/ocsp.h>
#endif
#undef BLOCK
/* Debugging output - to enable use:
*
* perl Makefile.PL DEFINE=-DSHOW_XS_DEBUG
* make
*
*/
#ifdef SHOW_XS_DEBUG
#define PR1(s) fprintf(stderr,s);
#define PR2(s,t) fprintf(stderr,s,t);
#define PR3(s,t,u) fprintf(stderr,s,t,u);
#define PR4(s,t,u,v) fprintf(stderr,s,t,u,v);
#else
#define PR1(s)
#define PR2(s,t)
#define PR3(s,t,u)
#define PR4(s,t,u,v)
#endif
static void TRACE(int level,char *msg,...) {
va_list args;
SV *trace = get_sv("Net::SSLeay::trace",0);
if (trace && SvIOK(trace) && SvIV(trace)>=level) {
char buf[4096];
va_start(args,msg);
vsnprintf(buf,4095,msg,args);
warn("%s",buf);
}
}
#include "constants.c"
/* ============= thread-safety related stuff ============== */
#define MY_CXT_KEY "Net::SSLeay::_guts" XS_VERSION
typedef struct {
HV* global_cb_data;
UV tid;
} my_cxt_t;
START_MY_CXT
#ifdef USE_ITHREADS
static perl_mutex LIB_init_mutex;
static perl_mutex *GLOBAL_openssl_mutex = NULL;
#endif
static int LIB_initialized;
UV get_my_thread_id(void) /* returns threads->tid() value */
{
dSP;
UV tid = 0;
int count = 0;
#ifdef USE_ITHREADS
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv("threads", 0)));
PUTBACK;
count = call_method("tid", G_SCALAR|G_EVAL);
SPAGAIN;
if (SvTRUE(ERRSV) || count != 1)
/* if threads not loaded or an error occurs return 0 */
tid = 0;
else
tid = (UV)POPi;
PUTBACK;
FREETMPS;
LEAVE;
#endif
return tid;
}
/* IMPORTANT NOTE:
* openssl locking was implemented according to http://www.openssl.org/docs/crypto/threads.html
* we implement both static and dynamic locking as described on URL above
* locking is supported when OPENSSL_THREADS macro is defined which means openssl-0.9.7 or newer
* we intentionally do not implement cleanup of openssl's threading as it causes troubles
* with apache-mpm-worker+mod_perl+mod_ssl+net-ssleay
*/
#if defined(USE_ITHREADS) && defined(OPENSSL_THREADS)
static void openssl_locking_function(int mode, int type, const char *file, int line)
{
PR3("openssl_locking_function %d %d\n", mode, type);
if (!GLOBAL_openssl_mutex) return;
if (mode & CRYPTO_LOCK)
MUTEX_LOCK(&GLOBAL_openssl_mutex[type]);
else
MUTEX_UNLOCK(&GLOBAL_openssl_mutex[type]);
}
#if OPENSSL_VERSION_NUMBER < 0x10000000L
static unsigned long openssl_threadid_func(void)
{
dMY_CXT;
return (unsigned long)(MY_CXT.tid);
}
#else
void openssl_threadid_func(CRYPTO_THREADID *id)
{
dMY_CXT;
CRYPTO_THREADID_set_numeric(id, (unsigned long)(MY_CXT.tid));
}
#endif
struct CRYPTO_dynlock_value
{
perl_mutex mutex;
};
struct CRYPTO_dynlock_value * openssl_dynlocking_create_function (const char *file, int line)
{
struct CRYPTO_dynlock_value *retval;
New(0, retval, 1, struct CRYPTO_dynlock_value);
if (!retval) return NULL;
MUTEX_INIT(&retval->mutex);
return retval;
}
void openssl_dynlocking_lock_function (int mode, struct CRYPTO_dynlock_value *l, const char *file, int line)
{
if (!l) return;
if (mode & CRYPTO_LOCK)
MUTEX_LOCK(&l->mutex);
else
MUTEX_UNLOCK(&l->mutex);
}
void openssl_dynlocking_destroy_function (struct CRYPTO_dynlock_value *l, const char *file, int line)
{
if (!l) return;
MUTEX_DESTROY(&l->mutex);
Safefree(l);
}
void openssl_threads_init(void)
{
int i;
PR1("STARTED: openssl_threads_init\n");
/* initialize static locking */
if ( !CRYPTO_get_locking_callback() ) {
#if OPENSSL_VERSION_NUMBER < 0x10000000L
if ( !CRYPTO_get_id_callback() ) {
#else
if ( !CRYPTO_THREADID_get_callback() ) {
#endif
PR2("openssl_threads_init static locking %d\n", CRYPTO_num_locks());
New(0, GLOBAL_openssl_mutex, CRYPTO_num_locks(), perl_mutex);
if (!GLOBAL_openssl_mutex) return;
for (i=0; i<CRYPTO_num_locks(); i++) MUTEX_INIT(&GLOBAL_openssl_mutex[i]);
CRYPTO_set_locking_callback((void (*)(int,int,const char *,int))openssl_locking_function);
#ifndef WIN32
/* no need for threadid_func() on Win32 */
#if OPENSSL_VERSION_NUMBER < 0x10000000L
CRYPTO_set_id_callback(openssl_threadid_func);
#else
CRYPTO_THREADID_set_callback(openssl_threadid_func);
#endif
#endif
}
}
/* initialize dynamic locking */
if ( !CRYPTO_get_dynlock_create_callback() &&
!CRYPTO_get_dynlock_lock_callback() &&
!CRYPTO_get_dynlock_destroy_callback() ) {
PR1("openssl_threads_init dynamic locking\n");
CRYPTO_set_dynlock_create_callback(openssl_dynlocking_create_function);
CRYPTO_set_dynlock_lock_callback(openssl_dynlocking_lock_function);
CRYPTO_set_dynlock_destroy_callback(openssl_dynlocking_destroy_function);
}
}
#endif
/* ============= typedefs to agument TYPEMAP ============== */
typedef void callback_no_ret(void);
typedef RSA * cb_ssl_int_int_ret_RSA(SSL * ssl,int is_export, int keylength);
typedef DH * cb_ssl_int_int_ret_DH(SSL * ssl,int is_export, int keylength);
typedef STACK_OF(X509_NAME) X509_NAME_STACK;
typedef int perl_filehandle_t;
/* ======= special handler used by EVP_MD_do_all_sorted ======= */
#if OPENSSL_VERSION_NUMBER >= 0x1000000fL
static void handler_list_md_fn(const EVP_MD *m, const char *from, const char *to, void *arg)
{
/* taken from apps/dgst.c */
const char *mname;
if (!m) return; /* Skip aliases */
mname = OBJ_nid2ln(EVP_MD_type(m));
if (strcmp(from, mname)) return; /* Skip shortnames */
if (EVP_MD_flags(m) & EVP_MD_FLAG_PKEY_DIGEST) return; /* Skip clones */
if (strchr(mname, ' ')) mname= EVP_MD_name(m);
av_push(arg, newSVpv(mname,0));
}
#endif
/* ============= callbacks - basic info =============
*
* PLEASE READ THIS BEFORE YOU ADD ANY NEW CALLBACK!!
*
* There are basically 2 types of callbacks used in SSLeay:
*
* 1/ "one-time" callbacks - these are created+used+destroyed within one perl function implemented in XS
* these callbacks use a cpecial C structupe simple_cb_data_t to pass necessary data
* there are 2 related helper functions: simple_cb_data_new() + simple_cb_data_free
* for example see implementation of these functions:
* - RSA_generate_key
* - PEM_read_bio_PrivateKey
*
* 2/ "advanced" callbacks - these are setup/destroyed by one function but used by another function; these
* callbacks use global hash MY_CXT.global_cb_data to store perl functions + data to be uset at callback time
* there are 2 related helper functions: cb_data_advanced_put() + cb_data_advanced_get for manipulating
* global hash MY_CXT.global_cb_data which work like this:
* cb_data_advanced_put(<pointer>, "data_name", dataSV)
* >>>
* global_cb_data->{"ptr_<pointer>"}->{"data_name"} = dataSV)
* or
* data = cb_data_advanced_get(<pointer>, "data_name")
* >>>
* my $data = global_cb_data->{"ptr_<pointer>"}->{"data_name"}
* for example see implementation of these functions:
* - SSL_CTX_set_verify
* - SSL_set_verify
* - SSL_CTX_set_cert_verify_callback
* - SSL_CTX_set_default_passwd_cb
* - SSL_CTX_set_default_passwd_cb_userdata
* - SSL_set_session_secret_cb
*
* If you want to add a new callback:
* - you very likely need a new function "your_callback_name_invoke()"
* - decide whether your case fits case 1/ or 2/ (and implement likewise existing functions)
* - try to avoid adding a new style of callback implementation (or ask Net::SSLeay maintainers before)
*
*/
/* ============= callback stuff - generic functions============== */
struct _ssleay_cb_t {
SV* func;
SV* data;
};
typedef struct _ssleay_cb_t simple_cb_data_t;
simple_cb_data_t* simple_cb_data_new(SV* func, SV* data)
{
simple_cb_data_t* cb;
New(0, cb, 1, simple_cb_data_t);
if (cb) {
SvREFCNT_inc(func);
SvREFCNT_inc(data);
cb->func = func;
cb->data = (data == &PL_sv_undef) ? NULL : data;
}
return cb;
}
void simple_cb_data_free(simple_cb_data_t* cb)
{
if (cb) {
if (cb->func) {
SvREFCNT_dec(cb->func);
cb->func = NULL;
}
if (cb->data) {
SvREFCNT_dec(cb->data);
cb->data = NULL;
}
}
Safefree(cb);
}
int cb_data_advanced_put(void *ptr, const char* data_name, SV* data)
{
HV * L2HV;
SV ** svtmp;
int len;
char key_name[500];
dMY_CXT;
len = my_snprintf(key_name, sizeof(key_name), "ptr_%p", ptr);
if (len == sizeof(key_name)) return 0; /* error - key_name too short*/
/* get or create level-2 hash */
svtmp = hv_fetch(MY_CXT.global_cb_data, key_name, strlen(key_name), 0);
if (svtmp == NULL) {
L2HV = newHV();
hv_store(MY_CXT.global_cb_data, key_name, strlen(key_name), newRV_noinc((SV*)L2HV), 0);
}
else {
if (!SvOK(*svtmp) || !SvROK(*svtmp)) return 0;
#if defined(MUTABLE_PTR)
L2HV = (HV*)MUTABLE_PTR(SvRV(*svtmp));
#else
L2HV = (HV*)(SvRV(*svtmp));
#endif
}
/* first delete already stored value */
hv_delete(L2HV, data_name, strlen(data_name), G_DISCARD);
if (data!=NULL)
if (SvOK(data))
hv_store(L2HV, data_name, strlen(data_name), data, 0);
return 1;
}
SV* cb_data_advanced_get(void *ptr, const char* data_name)
{
HV * L2HV;
SV ** svtmp;
int len;
char key_name[500];
dMY_CXT;
len = my_snprintf(key_name, sizeof(key_name), "ptr_%p", ptr);
if (len == sizeof(key_name)) return &PL_sv_undef; /* return undef on error - key_name too short*/
/* get level-2 hash */
svtmp = hv_fetch(MY_CXT.global_cb_data, key_name, strlen(key_name), 0);
if (svtmp == NULL) return &PL_sv_undef;
if (!SvOK(*svtmp)) return &PL_sv_undef;
if (!SvROK(*svtmp)) return &PL_sv_undef;
#if defined(MUTABLE_PTR)
L2HV = (HV*)MUTABLE_PTR(SvRV(*svtmp));
#else
L2HV = (HV*)(SvRV(*svtmp));
#endif
/* get stored data */
svtmp = hv_fetch(L2HV, data_name, strlen(data_name), 0);
if (svtmp == NULL) return &PL_sv_undef;
if (!SvOK(*svtmp)) return &PL_sv_undef;
return *svtmp;
}
int cb_data_advanced_drop(void *ptr)
{
int len;
char key_name[500];
dMY_CXT;
len = my_snprintf(key_name, sizeof(key_name), "ptr_%p", ptr);
if (len == sizeof(key_name)) return 0; /* error - key_name too short*/
hv_delete(MY_CXT.global_cb_data, key_name, strlen(key_name), G_DISCARD);
return 1;
}
/* ============= callback stuff - invoke functions ============== */
static int ssleay_verify_callback_invoke (int ok, X509_STORE_CTX* x509_store)
{
dSP;
SSL* ssl;
int count = -1, res;
SV *cb_func;
PR1("STARTED: ssleay_verify_callback_invoke\n");
ssl = X509_STORE_CTX_get_ex_data(x509_store, SSL_get_ex_data_X509_STORE_CTX_idx());
cb_func = cb_data_advanced_get(ssl, "ssleay_verify_callback!!func");
if (!SvOK(cb_func)) {
SSL_CTX* ssl_ctx = SSL_get_SSL_CTX(ssl);
cb_func = cb_data_advanced_get(ssl_ctx, "ssleay_verify_callback!!func");
}
if (!SvOK(cb_func))
croak("Net::SSLeay: verify_callback called, but not set to point to any perl function.\n");
ENTER;
SAVETMPS;
PR2("verify callback glue ok=%d\n", ok);
PUSHMARK(sp);
EXTEND( sp, 2 );
PUSHs( sv_2mortal(newSViv(ok)) );
PUSHs( sv_2mortal(newSViv(PTR2IV(x509_store))) );
PUTBACK;
PR1("About to call verify callback.\n");
count = call_sv(cb_func, G_SCALAR);
PR1("Returned from verify callback.\n");
SPAGAIN;
if (count != 1)
croak ( "Net::SSLeay: verify_callback perl function did not return a scalar.\n");
res = POPi;
PUTBACK;
FREETMPS;
LEAVE;
return res;
}
static int ssleay_ctx_passwd_cb_invoke(char *buf, int size, int rwflag, void *userdata)
{
dSP;
int count = -1;
char *res;
SV *cb_func, *cb_data;
PR1("STARTED: ssleay_ctx_passwd_cb_invoke\n");
cb_func = cb_data_advanced_get(userdata, "ssleay_ctx_passwd_cb!!func");
cb_data = cb_data_advanced_get(userdata, "ssleay_ctx_passwd_cb!!data");
if(!SvOK(cb_func))
croak ("Net::SSLeay: ssleay_ctx_passwd_cb_invoke called, but not set to point to any perl function.\n");
ENTER;
SAVETMPS;
PUSHMARK(sp);
XPUSHs(sv_2mortal(newSViv(rwflag)));
XPUSHs(sv_2mortal(newSVsv(cb_data)));
PUTBACK;
count = call_sv( cb_func, G_SCALAR );
SPAGAIN;
if (count != 1)
croak("Net::SSLeay: ssleay_ctx_passwd_cb_invoke perl function did not return a scalar.\n");
res = POPp;
if (res == NULL) {
*buf = '\0';
} else {
strncpy(buf, res, size);
buf[size - 1] = '\0';
}
PUTBACK;
FREETMPS;
LEAVE;
return strlen(buf);
}
int ssleay_ctx_cert_verify_cb_invoke(X509_STORE_CTX* x509_store_ctx, void* data)
{
dSP;
int count = -1;
int res;
SV * cb_func, *cb_data;
void *ptr;
SSL *ssl;
PR1("STARTED: ssleay_ctx_cert_verify_cb_invoke\n");
#if OPENSSL_VERSION_NUMBER < 0x0090700fL
ssl = X509_STORE_CTX_get_ex_data(x509_store_ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
ptr = (void*) SSL_get_SSL_CTX(ssl);
#else
ssl = NULL;
ptr = (void*) data;
#endif
cb_func = cb_data_advanced_get(ptr, "ssleay_ctx_cert_verify_cb!!func");
cb_data = cb_data_advanced_get(ptr, "ssleay_ctx_cert_verify_cb!!data");
if(!SvOK(cb_func))
croak ("Net::SSLeay: ssleay_ctx_cert_verify_cb_invoke called, but not set to point to any perl function.\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSViv(PTR2IV(x509_store_ctx))));
XPUSHs(sv_2mortal(newSVsv(cb_data)));
PUTBACK;
count = call_sv(cb_func, G_SCALAR);
SPAGAIN;
if (count != 1)
croak("Net::SSLeay: ssleay_ctx_cert_verify_cb_invoke perl function did not return a scalar.\n");
res = POPi;
PUTBACK;
FREETMPS;
LEAVE;
return res;
}
#if OPENSSL_VERSION_NUMBER >= 0x0090806fL && !defined(OPENSSL_NO_TLSEXT)
int tlsext_servername_callback_invoke(SSL *ssl, int *ad, void *arg)
{
dSP;
int count = -1;
int res;
SV * cb_func, *cb_data;
PR1("STARTED: tlsext_servername_callback_invoke\n");
cb_func = cb_data_advanced_get(arg, "tlsext_servername_callback!!func");
cb_data = cb_data_advanced_get(arg, "tlsext_servername_callback!!data");
if(!SvOK(cb_func))
croak ("Net::SSLeay: tlsext_servername_callback_invoke called, but not set to point to any perl function.\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSViv(PTR2IV(ssl))));
XPUSHs(sv_2mortal(newSVsv(cb_data)));
PUTBACK;
count = call_sv(cb_func, G_SCALAR);
SPAGAIN;
if (count != 1)
croak("Net::SSLeay: tlsext_servername_callback_invoke perl function did not return a scalar.\n");
res = POPi;
PUTBACK;
FREETMPS;
LEAVE;
return res;
}
#endif
#if OPENSSL_VERSION_NUMBER >= 0x10000000L && !defined(OPENSSL_NO_TLSEXT)
int tlsext_status_cb_invoke(SSL *ssl, void *arg)
{
dSP;
SV *cb_func, *cb_data;
SSL_CTX *ctx = SSL_get_SSL_CTX(ssl);
int len,res,nres = -1;
const unsigned char *p = NULL;
OCSP_RESPONSE *ocsp_response = NULL;
cb_func = cb_data_advanced_get(ctx, "tlsext_status_cb!!func");
cb_data = cb_data_advanced_get(ctx, "tlsext_status_cb!!data");
if ( ! SvROK(cb_func) || (SvTYPE(SvRV(cb_func)) != SVt_PVCV))
croak ("Net::SSLeay: tlsext_status_cb_invoke called, but not set to point to any perl function.\n");
len = SSL_get_tlsext_status_ocsp_resp(ssl, &p);
if (p) ocsp_response = d2i_OCSP_RESPONSE(NULL, &p, len);
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSViv(PTR2IV(ssl))));
PUSHs( sv_2mortal(newSViv(PTR2IV(ocsp_response))) );
XPUSHs(sv_2mortal(newSVsv(cb_data)));
PUTBACK;
nres = call_sv(cb_func, G_SCALAR);
OCSP_RESPONSE_free(ocsp_response);
SPAGAIN;
if (nres != 1)
croak("Net::SSLeay: tlsext_status_cb_invoke perl function did not return a scalar.\n");
res = POPi;
PUTBACK;
FREETMPS;
LEAVE;
return res;
}
#endif
#if defined(SSL_F_SSL_SET_HELLO_EXTENSION) || defined(SSL_F_SSL_SET_SESSION_TICKET_EXT)
int ssleay_session_secret_cb_invoke(SSL* s, void* secret, int *secret_len,
STACK_OF(SSL_CIPHER) *peer_ciphers,
SSL_CIPHER **cipher, void *arg)
{
dSP;
int count = -1, res, i;
AV *ciphers = newAV();
SV *pref_cipher = sv_newmortal();
SV * cb_func, *cb_data;
PR1("STARTED: ssleay_session_secret_cb_invoke\n");
cb_func = cb_data_advanced_get(arg, "ssleay_session_secret_cb!!func");
cb_data = cb_data_advanced_get(arg, "ssleay_session_secret_cb!!data");
if(!SvOK(cb_func))
croak ("Net::SSLeay: ssleay_ctx_passwd_cb_invoke called, but not set to point to any perl function.\n");
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSVpv(secret, *secret_len)) );
for (i=0; i<sk_SSL_CIPHER_num(peer_ciphers); i++) {
SSL_CIPHER *c = sk_SSL_CIPHER_value(peer_ciphers,i);
av_store(ciphers, i, sv_2mortal(newSVpv(SSL_CIPHER_get_name(c), 0)));
}
XPUSHs(sv_2mortal(newRV_inc((SV*)ciphers)));
XPUSHs(sv_2mortal(newRV_inc(pref_cipher)));
XPUSHs(sv_2mortal(newSVsv(cb_data)));
PUTBACK;
count = call_sv( cb_func, G_SCALAR );
SPAGAIN;
if (count != 1)
croak ("Net::SSLeay: ssleay_session_secret_cb_invoke perl function did not return a scalar.\n");
res = POPi;
if (res) {
/* See if there is a preferred cipher selected, if so it is an index into the stack */
if (SvIOK(pref_cipher))
*cipher = sk_SSL_CIPHER_value(peer_ciphers, SvIV(pref_cipher));
}
PUTBACK;
FREETMPS;
LEAVE;
return res;
}
#endif
#if OPENSSL_VERSION_NUMBER >= 0x10001000L && !defined(OPENSSL_NO_NEXTPROTONEG)
int next_proto_helper_AV2protodata(AV * list, unsigned char *out)
{
int i, last_index, ptr = 0;
last_index = av_len(list);
if (last_index<0) return 0;
for(i=0; i<=last_index; i++) {
char *p = SvPV_nolen(*av_fetch(list, i, 0));
size_t len = strlen(p);
if (len>255) return 0;
if (out) {
/* if out == NULL we only calculate the length of output */
out[ptr] = (unsigned char)len;
strncpy((char*)out+ptr+1, p, len);
}
ptr += strlen(p) + 1;
}
return ptr;
}
int next_proto_helper_protodata2AV(AV * list, const unsigned char *in, unsigned int inlen)
{
unsigned int i = 0;
unsigned char il;
if (!list || inlen<2) return 0;
while (i<inlen) {
il = in[i++];
if (i+il > inlen) return 0;
av_push(list, newSVpv((const char*)in+i, il));
i += il;
}
return 1;
}
int next_proto_select_cb_invoke(SSL *ssl, unsigned char **out, unsigned char *outlen,
const unsigned char *in, unsigned int inlen, void *arg)
{
SV *cb_func, *cb_data;
unsigned char *next_proto_data;
size_t next_proto_len;
int next_proto_status;
SSL_CTX *ctx = SSL_get_SSL_CTX(ssl);
/* this n_a is required for building with old perls: */
STRLEN n_a;
PR1("STARTED: next_proto_select_cb_invoke\n");
cb_func = cb_data_advanced_get(ctx, "next_proto_select_cb!!func");
cb_data = cb_data_advanced_get(ctx, "next_proto_select_cb!!data");
/* clear last_status value = store undef */
cb_data_advanced_put(ssl, "next_proto_select_cb!!last_status", NULL);
cb_data_advanced_put(ssl, "next_proto_select_cb!!last_negotiated", NULL);
if (SvROK(cb_func) && (SvTYPE(SvRV(cb_func)) == SVt_PVCV)) {
int count = -1;
AV *list = newAV();
SV *tmpsv;
dSP;
if (!next_proto_helper_protodata2AV(list, in, inlen)) return SSL_TLSEXT_ERR_ALERT_FATAL;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSViv(PTR2IV(ssl))));
XPUSHs(sv_2mortal(newRV_inc((SV*)list)));
XPUSHs(sv_2mortal(newSVsv(cb_data)));
PUTBACK;
count = call_sv( cb_func, G_ARRAY );
SPAGAIN;
if (count != 2)
croak ("Net::SSLeay: next_proto_select_cb_invoke perl function did not return 2 values.\n");
next_proto_data = (unsigned char*)POPpx;
next_proto_status = POPi;
next_proto_len = strlen((const char*)next_proto_data);
if (next_proto_len<=255) {
/* store last_status + last_negotiated into global hash */
cb_data_advanced_put(ssl, "next_proto_select_cb!!last_status", newSViv(next_proto_status));
tmpsv = newSVpv((const char*)next_proto_data, next_proto_len);
cb_data_advanced_put(ssl, "next_proto_select_cb!!last_negotiated", tmpsv);
*out = (unsigned char *)SvPVX(tmpsv);
*outlen = next_proto_len;
}
PUTBACK;
FREETMPS;
LEAVE;
return next_proto_len>255 ? SSL_TLSEXT_ERR_ALERT_FATAL : SSL_TLSEXT_ERR_OK;
}
else if (SvROK(cb_data) && (SvTYPE(SvRV(cb_data)) == SVt_PVAV)) {
next_proto_len = next_proto_helper_AV2protodata((AV*)SvRV(cb_data), NULL);
Newx(next_proto_data, next_proto_len, unsigned char);
if (!next_proto_data) return SSL_TLSEXT_ERR_ALERT_FATAL;
next_proto_len = next_proto_helper_AV2protodata((AV*)SvRV(cb_data), next_proto_data);
next_proto_status = SSL_select_next_proto(out, outlen, in, inlen, next_proto_data, next_proto_len);
/* store last_status + last_negotiated into global hash */
cb_data_advanced_put(ssl, "next_proto_select_cb!!last_status", newSViv(next_proto_status));
cb_data_advanced_put(ssl, "next_proto_select_cb!!last_negotiated", newSVpv((const char*)*out, *outlen));
Safefree(next_proto_data);
return SSL_TLSEXT_ERR_OK;
}
return SSL_TLSEXT_ERR_ALERT_FATAL;
}
int next_protos_advertised_cb_invoke(SSL *ssl, const unsigned char **out, unsigned int *outlen, void *arg_unused)
{
SV *cb_func, *cb_data;
unsigned char *protodata = NULL;
unsigned short protodata_len = 0;
SV *tmpsv;
AV *tmpav;
SSL_CTX *ctx = SSL_get_SSL_CTX(ssl);
PR1("STARTED: next_protos_advertised_cb_invoke");
cb_func = cb_data_advanced_get(ctx, "next_protos_advertised_cb!!func");
cb_data = cb_data_advanced_get(ctx, "next_protos_advertised_cb!!data");
if (SvROK(cb_func) && (SvTYPE(SvRV(cb_func)) == SVt_PVCV)) {
int count = -1;
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSViv(PTR2IV(ssl))));
XPUSHs(sv_2mortal(newSVsv(cb_data)));
PUTBACK;
count = call_sv( cb_func, G_SCALAR );
SPAGAIN;
if (count != 1)
croak ("Net::SSLeay: next_protos_advertised_cb_invoke perl function did not return scalar value.\n");
tmpsv = POPs;
if (SvOK(tmpsv) && SvROK(tmpsv) && (SvTYPE(SvRV(tmpsv)) == SVt_PVAV)) {
tmpav = (AV*)SvRV(tmpsv);
protodata_len = next_proto_helper_AV2protodata(tmpav, NULL);
Newx(protodata, protodata_len, unsigned char);
if (protodata) next_proto_helper_AV2protodata(tmpav, protodata);
}
PUTBACK;
FREETMPS;
LEAVE;
}
else if (SvROK(cb_data) && (SvTYPE(SvRV(cb_data)) == SVt_PVAV)) {
tmpav = (AV*)SvRV(cb_data);
protodata_len = next_proto_helper_AV2protodata(tmpav, NULL);
Newx(protodata, protodata_len, unsigned char);
if (protodata) next_proto_helper_AV2protodata(tmpav, protodata);
}
if (protodata) {
tmpsv = newSVpv((const char*)protodata, protodata_len);
Safefree(protodata);
cb_data_advanced_put(ssl, "next_protos_advertised_cb!!last_advertised", tmpsv);
*out = (unsigned char *)SvPVX(tmpsv);