removed session structs + split crypt funcs

1 files changed, 30 insertions, 730 deletions

diff --git a/session.c b/session.c
index 827c6b7..548786f 100644
--- a/session.c
+++ b/session.c
@@ -1,19 +1,20 @@
 /*
   +----------------------------------------------------------------------+
-  | Suhosin Version 1                            |
+  | Suhosin Version 1                                                    |
   +----------------------------------------------------------------------+
-  | Copyright (c) 2006-2007 The Hardened-PHP Project             |
-  | Copyright (c) 2007-2014 SektionEins GmbH                 |
+  | Copyright (c) 2006-2007 The Hardened-PHP Project                     |
+  | Copyright (c) 2007-2014 SektionEins GmbH                             |
   +----------------------------------------------------------------------+
-  | This source file is subject to version 3.01 of the PHP license,  |
-  | that is bundled with this package in the file LICENSE, and is    |
-  | available through the world-wide-web at the following url:       |
-  | http://www.php.net/license/3_01.txt                  |
+  | This source file is subject to version 3.01 of the PHP license,      |
+  | that is bundled with this package in the file LICENSE, and is        |
+  | available through the world-wide-web at the following url:           |
+  | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
-  | obtain it through the world-wide-web, please send a note to      |
-  | license@php.net so we can mail you a copy immediately.       |
+  | obtain it through the world-wide-web, please send a note to          |
+  | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
-  | Author: Stefan Esser <sesser@sektioneins.de>             |
+  | Authors: Stefan Esser <sesser@sektioneins.de>                        |
+  |          Ben Fuhrmannek <ben.fuhrmannek@sektioneins.de>              |
   +----------------------------------------------------------------------+
 */
 /*
@@ -29,10 +30,8 @@
 #include "SAPI.h"
 #include "php_ini.h"
 #include "php_suhosin.h"
-#include "ext/standard/base64.h"
 #include "ext/standard/php_smart_str.h"
 #include "ext/standard/php_var.h"
-#include "sha256.h"
 
 #include <fcntl.h>
 
@@ -40,480 +39,19 @@
 # include "ext/hash/php_hash.h"
 #endif
 
-#define PS_OPEN_ARGS void **mod_data, const char *save_path, const char *session_name TSRMLS_DC
-#define PS_CLOSE_ARGS void **mod_data TSRMLS_DC
-#define PS_READ_ARGS void **mod_data, const char *key, char **val, int *vallen TSRMLS_DC
-#define PS_WRITE_ARGS void **mod_data, const char *key, const char *val, const int vallen TSRMLS_DC
-#define PS_DESTROY_ARGS void **mod_data, const char *key TSRMLS_DC
-#define PS_GC_ARGS void **mod_data, int maxlifetime, int *nrdels TSRMLS_DC
-#define PS_CREATE_SID_ARGS void **mod_data, int *newlen TSRMLS_DC
-
-typedef struct ps_module_struct {
-    const char *s_name;
-    int (*s_open)(PS_OPEN_ARGS);
-    int (*s_close)(PS_CLOSE_ARGS);
-    int (*s_read)(PS_READ_ARGS);
-    int (*s_write)(PS_WRITE_ARGS);
-    int (*s_destroy)(PS_DESTROY_ARGS);
-    int (*s_gc)(PS_GC_ARGS);
-    char *(*s_create_sid)(PS_CREATE_SID_ARGS);
-} ps_module;
-
-typedef enum {
-    php_session_disabled,
-    php_session_none,
-    php_session_active
-} php_session_status;
-
-#define PS_SERIALIZER_ENCODE_ARGS char **newstr, int *newlen TSRMLS_DC
-#define PS_SERIALIZER_DECODE_ARGS const char *val, int vallen TSRMLS_DC
-
-typedef struct ps_serializer_struct {
-    const char *name;
-    int (*encode)(PS_SERIALIZER_ENCODE_ARGS);
-    int (*decode)(PS_SERIALIZER_DECODE_ARGS);
-} ps_serializer;
-
-typedef struct _php_ps_globals_43_44 {
-    char *save_path;
-    char *session_name;
-    char *id;
-    char *extern_referer_chk;
-    char *entropy_file;
-    char *cache_limiter;
-    long entropy_length;
-    long cookie_lifetime;
-    char *cookie_path;
-    char *cookie_domain;
-    zend_bool  cookie_secure;
-    ps_module *mod;
-    void *mod_data;
-    php_session_status session_status;
-    long gc_probability;
-    long gc_divisor;
-    long gc_maxlifetime;
-    int module_number;
-    long cache_expire;
-    zend_bool bug_compat; /* Whether to behave like PHP 4.2 and earlier */
-    zend_bool bug_compat_warn; /* Whether to warn about it */
-    const struct ps_serializer_struct *serializer;
-    zval *http_session_vars;
-    zend_bool auto_start;
-    zend_bool use_cookies;
-    zend_bool use_only_cookies;
-    zend_bool use_trans_sid;    /* contains the INI value of whether to use trans-sid */
-    zend_bool apply_trans_sid;  /* whether or not to enable trans-sid for the current request */
-    int send_cookie;
-    int define_sid;
-} php_ps_globals_43_44;
-
-typedef struct _php_ps_globals_50_51 {
-    char *save_path;
-    char *session_name;
-    char *id;
-    char *extern_referer_chk;
-    char *entropy_file;
-    char *cache_limiter;
-    long entropy_length;
-    long cookie_lifetime;
-    char *cookie_path;
-    char *cookie_domain;
-    zend_bool  cookie_secure;
-    ps_module *mod;
-    void *mod_data;
-    php_session_status session_status;
-    long gc_probability;
-    long gc_divisor;
-    long gc_maxlifetime;
-    int module_number;
-    long cache_expire;
-    zend_bool bug_compat; /* Whether to behave like PHP 4.2 and earlier */
-    zend_bool bug_compat_warn; /* Whether to warn about it */
-    const struct ps_serializer_struct *serializer;
-    zval *http_session_vars;
-    zend_bool auto_start;
-    zend_bool use_cookies;
-    zend_bool use_only_cookies;
-    zend_bool use_trans_sid;    /* contains the INI value of whether to use trans-sid */
-    zend_bool apply_trans_sid;  /* whether or not to enable trans-sid for the current request */
-
-    long hash_func;
-    long hash_bits_per_character;
-    int send_cookie;
-    int define_sid;
-} php_ps_globals_50_51;
-
-typedef struct _php_ps_globals_52 {
-    char *save_path;
-    char *session_name;
-    char *id;
-    char *extern_referer_chk;
-    char *entropy_file;
-    char *cache_limiter;
-    long entropy_length;
-    long cookie_lifetime;
-    char *cookie_path;
-    char *cookie_domain;
-    zend_bool  cookie_secure;
-    zend_bool  cookie_httponly;
-    ps_module *mod;
-    void *mod_data;
-    php_session_status session_status;
-    long gc_probability;
-    long gc_divisor;
-    long gc_maxlifetime;
-    int module_number;
-    long cache_expire;
-    zend_bool bug_compat; /* Whether to behave like PHP 4.2 and earlier */
-    zend_bool bug_compat_warn; /* Whether to warn about it */
-    const struct ps_serializer_struct *serializer;
-    zval *http_session_vars;
-    zend_bool auto_start;
-    zend_bool use_cookies;
-    zend_bool use_only_cookies;
-    zend_bool use_trans_sid;    /* contains the INI value of whether to use trans-sid */
-    zend_bool apply_trans_sid;  /* whether or not to enable trans-sid for the current request */
-
-    long hash_func;
-    long hash_bits_per_character;
-    int send_cookie;
-    int define_sid;
-    zend_bool invalid_session_id;   /* allows the driver to report about an invalid session id and request id regeneration */
-} php_ps_globals_52;
-
-typedef struct _php_ps_globals_53 {
-    char *save_path;
-    char *session_name;
-    char *id;
-    char *extern_referer_chk;
-    char *entropy_file;
-    char *cache_limiter;
-    long entropy_length;
-    long cookie_lifetime;
-    char *cookie_path;
-    char *cookie_domain;
-    zend_bool  cookie_secure;
-    zend_bool  cookie_httponly;
-    ps_module *mod;
-    void *mod_data;
-    php_session_status session_status;
-    long gc_probability;
-    long gc_divisor;
-    long gc_maxlifetime;
-    int module_number;
-    long cache_expire;
-    union {
-        zval *names[6];
-        struct {
-            zval *ps_open;
-            zval *ps_close;
-            zval *ps_read;
-            zval *ps_write;
-            zval *ps_destroy;
-            zval *ps_gc;
-        } name;
-    } mod_user_names;
-    zend_bool bug_compat; /* Whether to behave like PHP 4.2 and earlier */
-    zend_bool bug_compat_warn; /* Whether to warn about it */
-    const struct ps_serializer_struct *serializer;
-    zval *http_session_vars;
-    zend_bool auto_start;
-    zend_bool use_cookies;
-    zend_bool use_only_cookies;
-    zend_bool use_trans_sid;    /* contains the INI value of whether to use trans-sid */
-    zend_bool apply_trans_sid;  /* whether or not to enable trans-sid for the current request */
-
-    long hash_func;
-#if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
-    php_hash_ops *hash_ops;
-#endif
-    long hash_bits_per_character;
-    int send_cookie;
-    int define_sid;
-    zend_bool invalid_session_id;   /* allows the driver to report about an invalid session id and request id regeneration */
-} php_ps_globals_53;
-
-#if PHP_VERSION_ID >= 50400
-typedef struct _php_session_rfc1867_progress_54_55_56 {
-
-        size_t    sname_len;
-        zval      sid;
-        smart_str key;
-
-        long      update_step;
-        long      next_update;
-        double    next_update_time;
-        zend_bool cancel_upload;
-        zend_bool apply_trans_sid;
-        size_t    content_length;
-
-        zval      *data;                 /* the array exported to session data */
-        zval      *post_bytes_processed; /* data["bytes_processed"] */
-        zval      *files;                /* data["files"] array */
-        zval      *current_file;         /* array of currently uploading file */
-        zval      *current_file_bytes_processed;
-} php_session_rfc1867_progress_54_55_56;
-
-typedef struct _php_ps_globals_54 {
-    char *save_path;
-    char *session_name;
-    char *id;
-    char *extern_referer_chk;
-    char *entropy_file;
-    char *cache_limiter;
-    long entropy_length;
-    long cookie_lifetime;
-    char *cookie_path;
-    char *cookie_domain;
-    zend_bool  cookie_secure;
-    zend_bool  cookie_httponly;
-    ps_module *mod;
-    ps_module *default_mod;
-    void *mod_data;
-    php_session_status session_status;
-    long gc_probability;
-    long gc_divisor;
-    long gc_maxlifetime;
-    int module_number;
-    long cache_expire;
-    union {
-        zval *names[6];
-        struct {
-            zval *ps_open;
-            zval *ps_close;
-            zval *ps_read;
-            zval *ps_write;
-            zval *ps_destroy;
-            zval *ps_gc;
-        } name;
-    } mod_user_names;
-    int mod_user_implemented;
-    int mod_user_is_open;
-    const struct ps_serializer_struct *serializer;
-    zval *http_session_vars;
-    zend_bool auto_start;
-    zend_bool use_cookies;
-    zend_bool use_only_cookies;
-    zend_bool use_trans_sid;    /* contains the INI value of whether to use trans-sid */
-    zend_bool apply_trans_sid;  /* whether or not to enable trans-sid for the current request */
-
-    long hash_func;
-#if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
-    php_hash_ops *hash_ops;
-#endif
-    long hash_bits_per_character;
-    int send_cookie;
-    int define_sid;
-    zend_bool invalid_session_id;   /* allows the driver to report about an invalid session id and request id regeneration */
-
-    php_session_rfc1867_progress_54_55_56 *rfc1867_progress;
-    zend_bool rfc1867_enabled; /* session.upload_progress.enabled */
-    zend_bool rfc1867_cleanup; /* session.upload_progress.cleanup */
-    smart_str rfc1867_prefix;  /* session.upload_progress.prefix */
-    smart_str rfc1867_name;    /* session.upload_progress.name */
-    long rfc1867_freq;         /* session.upload_progress.freq */
-    double rfc1867_min_freq;   /* session.upload_progress.min_freq */
-} php_ps_globals_54;
-#endif
-
-#if PHP_VERSION_ID >= 50500
-typedef struct _php_ps_globals_55 {
-        char *save_path;
-        char *session_name;
-        char *id;
-        char *extern_referer_chk;
-        char *entropy_file;
-        char *cache_limiter;
-        long entropy_length;
-        long cookie_lifetime;
-        char *cookie_path;
-        char *cookie_domain;
-        zend_bool  cookie_secure;
-        zend_bool  cookie_httponly;
-        ps_module *mod;
-        ps_module *default_mod;
-        void *mod_data;
-        php_session_status session_status;
-        long gc_probability;
-        long gc_divisor;
-        long gc_maxlifetime;
-        int module_number;
-        long cache_expire;
-        union {
-                zval *names[7];
-                struct {
-                        zval *ps_open;
-                        zval *ps_close;
-                        zval *ps_read;
-                        zval *ps_write;
-                        zval *ps_destroy;
-                        zval *ps_gc;
-                        zval *ps_create_sid;
-                } name;
-        } mod_user_names;
-        int mod_user_implemented;
-        int mod_user_is_open;
-        const struct ps_serializer_struct *serializer;
-        zval *http_session_vars;
-        zend_bool auto_start;
-        zend_bool use_cookies;
-        zend_bool use_only_cookies;
-        zend_bool use_trans_sid;        /* contains the INI value of whether to use trans-sid */
-        zend_bool apply_trans_sid;      /* whether or not to enable trans-sid for the current request */
-
-        long hash_func;
-#if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
-        php_hash_ops *hash_ops;
-#endif
-        long hash_bits_per_character;
-        int send_cookie;
-        int define_sid;
-        zend_bool invalid_session_id;   /* allows the driver to report about an invalid session id and request id regeneration */
-
-        php_session_rfc1867_progress_54_55_56 *rfc1867_progress;
-        zend_bool rfc1867_enabled; /* session.upload_progress.enabled */
-        zend_bool rfc1867_cleanup; /* session.upload_progress.cleanup */
-        smart_str rfc1867_prefix;  /* session.upload_progress.prefix */
-        smart_str rfc1867_name;    /* session.upload_progress.name */
-        long rfc1867_freq;         /* session.upload_progress.freq */
-        double rfc1867_min_freq;   /* session.upload_progress.min_freq */
-
-        zend_bool use_strict_mode; /* whether or not PHP accepts unknown session ids */
-} php_ps_globals_55;
-
-typedef struct _php_ps_globals_56 {
-        char *save_path;
-        char *session_name;
-        char *id;
-        char *extern_referer_chk;
-        char *entropy_file;
-        char *cache_limiter;
-        long entropy_length;
-        long cookie_lifetime;
-        char *cookie_path;
-        char *cookie_domain;
-        zend_bool  cookie_secure;
-        zend_bool  cookie_httponly;
-        ps_module *mod;
-        ps_module *default_mod;
-        void *mod_data;
-        php_session_status session_status;
-        long gc_probability;
-        long gc_divisor;
-        long gc_maxlifetime;
-        int module_number;
-        long cache_expire;
-        union {
-                zval *names[7];
-                struct {
-                        zval *ps_open;
-                        zval *ps_close;
-                        zval *ps_read;
-                        zval *ps_write;
-                        zval *ps_destroy;
-                        zval *ps_gc;
-                        zval *ps_create_sid;
-                } name;
-        } mod_user_names;
-        int mod_user_implemented;
-        int mod_user_is_open;
-        const struct ps_serializer_struct *serializer;
-        zval *http_session_vars;
-        zend_bool auto_start;
-        zend_bool use_cookies;
-        zend_bool use_only_cookies;
-        zend_bool use_trans_sid;        /* contains the INI value of whether to use trans-sid */
-        zend_bool apply_trans_sid;      /* whether or not to enable trans-sid for the current request */
-
-        long hash_func;
-#if defined(HAVE_HASH_EXT) && !defined(COMPILE_DL_HASH)
-        php_hash_ops *hash_ops;
-#endif
-        long hash_bits_per_character;
-        int send_cookie;
-        int define_sid;
-        zend_bool invalid_session_id;   /* allows the driver to report about an invalid session id and request id regeneration */
-
-        php_session_rfc1867_progress_54_55_56 *rfc1867_progress;
-        zend_bool rfc1867_enabled; /* session.upload_progress.enabled */
-        zend_bool rfc1867_cleanup; /* session.upload_progress.cleanup */
-        smart_str rfc1867_prefix;  /* session.upload_progress.prefix */
-        smart_str rfc1867_name;    /* session.upload_progress.name */
-        long rfc1867_freq;         /* session.upload_progress.freq */
-        double rfc1867_min_freq;   /* session.upload_progress.min_freq */
-
-        zend_bool use_strict_mode; /* whether or not PHP accepts unknown session ids */
-        unsigned char session_data_hash[16]; /* binary MD5 hash length */
-} php_ps_globals_56;
-#endif
+#ifdef HAVE_PHP_SESSION
+#include "ext/session/php_session.h"
 
 #ifdef ZTS
 static ts_rsrc_id session_globals_id = 0;
-# if (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 6)
-#  define SESSION_G(v) TSRMG(session_globals_id, php_ps_globals_56 *, v)
-# elif (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 5)
-#  define SESSION_G(v) TSRMG(session_globals_id, php_ps_globals_55 *, v)
-# elif (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 4)
-#  define SESSION_G(v) TSRMG(session_globals_id, php_ps_globals_54 *, v)
-# elif (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 3)
-#  define SESSION_G(v) TSRMG(session_globals_id, php_ps_globals_53 *, v)
-# elif (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 2)
-#  define SESSION_G(v) TSRMG(session_globals_id, php_ps_globals_52 *, v)
-# elif (PHP_MAJOR_VERSION == 5)
-#  define SESSION_G(v) TSRMG(session_globals_id, php_ps_globals_50_51 *, v)
-# elif (PHP_MAJOR_VERSION == 4 && PHP_MINOR_VERSION >= 3)
-#  define SESSION_G(v) TSRMG(session_globals_id, php_ps_globals_43_44 *, v)
-# else 
-    UNSUPPORTED PHP VERSION
-# endif
+#define SESSION_G(v) TSRMG(session_globals_id, php_ps_globals *, v)
 #else
-# if (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 6)
-static php_ps_globals_56 *session_globals = NULL;
-# elif (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 5)
-static php_ps_globals_55 *session_globals = NULL;
-# elif (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 4)
-static php_ps_globals_54 *session_globals = NULL;
-# elif (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 3)
-static php_ps_globals_53 *session_globals = NULL;
-# elif (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 2)
-static php_ps_globals_52 *session_globals = NULL;
-# elif (PHP_MAJOR_VERSION == 5)
-static php_ps_globals_50_51 *session_globals = NULL;
-# elif (PHP_MAJOR_VERSION == 4 && PHP_MINOR_VERSION >= 3)
-static php_ps_globals_43_44 *session_globals = NULL;
-# else 
-    UNSUPPORTED PHP VERSION
-# endif
+static php_ps_globals *session_globals = NULL;
 #define SESSION_G(v) (session_globals->v)
 #endif
 
-
 ps_serializer *(*suhosin_find_ps_serializer)(char *name TSRMLS_DC) = NULL;
 
-#define PS_ENCODE_VARS                                          \
-    char *key;                                                  \
-    uint key_length;                                            \
-    ulong num_key;                                              \
-    zval **struc;
-
-#define PS_ENCODE_LOOP(code) do {                                   \
-        HashTable *_ht = Z_ARRVAL_P(SESSION_G(http_session_vars));          \
-        int key_type;                                               \
-                                                                    \
-        for (zend_hash_internal_pointer_reset(_ht);                 \
-                (key_type = zend_hash_get_current_key_ex(_ht, &key, &key_length, &num_key, 0, NULL)) != HASH_KEY_NON_EXISTANT; \
-                    zend_hash_move_forward(_ht)) {                  \
-            if (key_type == HASH_KEY_IS_LONG) {                     \
-                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Skipping numeric key %ld", num_key);    \
-                continue;                                           \
-            }                                                       \
-            key_length--;                                           \
-            if (suhosin_get_session_var(key, key_length, &struc TSRMLS_CC) == SUCCESS) {    \
-                code;                                               \
-            }                                                       \
-        }                                                           \
-    } while(0)
-
 static int suhosin_get_session_var(char *name, size_t namelen, zval ***state_var TSRMLS_DC) /* {{{ */
 {
     int ret = FAILURE;
@@ -598,259 +136,6 @@ static void suhosin_send_cookie(TSRMLS_D)
     *session_send_cookie = 1;
 }
 
-void suhosin_get_ipv4(char *buf TSRMLS_DC)
-{
-    char *raddr = suhosin_getenv("REMOTE_ADDR", sizeof("REMOTE_ADDR")-1 TSRMLS_CC);
-    int i;
-
-
-    if (raddr == NULL) {
-        memset(buf, 0, 4);
-        return;
-    }
-    
-    for (i=0; i<4; i++) {
-        if (raddr[0] == 0) {
-            buf[i] = 0;
-        } else {
-            buf[i] = strtol(raddr, &raddr, 10);
-            if (raddr[0] == '.') {
-                raddr++;
-            }
-        }
-    }
-}
-
-char *suhosin_encrypt_string(char *str, int len, char *var, int vlen, char *key TSRMLS_DC)
-{
-    int padded_len, i, slen;
-    unsigned char *crypted, *tmp;
-    unsigned int check = 0x13579BDF;
-    
-    if (str == NULL) {
-    return NULL;
-    }
-    if (len == 0) {
-        return estrndup("", 0);
-    }
-
-
-    suhosin_aes_gkey(4,8,key TSRMLS_CC);
-
-    padded_len = ((len+15) & ~0xF);
-    crypted = emalloc(16+padded_len+1);
-    memset(crypted, 0xff, 16+padded_len+1);
-    memcpy(crypted+16, str, len+1);
-
-    /* calculate check value */
-    for (i = 0; i<vlen; i++) {
-        check = (check << 3) | (check >> (32-3));
-        check += check << 1;
-        check ^= (unsigned char)var[i];
-    }
-    for (i = 0; i<len; i++) {
-        check = (check << 3) | (check >> (32-3));
-        check += check << 1;
-        check ^= (unsigned char)str[i];
-    }
-    
-    /* store ip value */
-    suhosin_get_ipv4((char *)crypted+4 TSRMLS_CC);
-    
-    /* store check value */
-    crypted[8] = check & 0xff;
-    crypted[9] = (check >> 8) & 0xff;
-    crypted[10] = (check >> 16) & 0xff;
-    crypted[11] = (check >> 24) & 0xff;
-
-    /* store original length */
-    crypted[12] = len & 0xff;
-    crypted[13] = (len >> 8) & 0xff;
-    crypted[14] = (len >> 16) & 0xff;
-    crypted[15] = (len >> 24) & 0xff;
-    
-    for (i=0, tmp=crypted; i<padded_len+16; i+=16, tmp+=16) {
-        if (i > 0) {
-            int j;
-            for (j=0; j<16; j++) tmp[j] ^= tmp[j-16];
-        }
-        suhosin_aes_encrypt((char *)tmp TSRMLS_CC);
-    }
-    
-    tmp = php_base64_encode(crypted, padded_len+16, NULL);
-    efree(crypted);
-    slen=strlen((char *)tmp);
-    for (i=0; i<slen; i++) {
-        switch (tmp[i]) {
-        case '/': tmp[i]='-'; break;
-        case '=': tmp[i]='.'; break;
-        case '+': tmp[i]='_'; break;
-        }
-    }
-    return (char *)tmp;
-}
-
-char *suhosin_decrypt_string(char *str, int padded_len, char *var, int vlen, char *key, int *orig_len, int check_ra TSRMLS_DC)
-{
-    int len, i, o_len, invalid = 0;
-    unsigned char *decrypted, *tmp;
-    unsigned int check = 0x13579BDF;
-    char buf[4];
-    
-    if (str == NULL) {
-    return NULL;
-    }
-    
-    if (padded_len == 0) {
-        if (orig_len) {
-            *orig_len = 0;
-        }
-        return estrndup("", 0);
-    }
-    suhosin_aes_gkey(4,8,key TSRMLS_CC);
-
-    for (i=0; i<padded_len; i++) {
-        switch (str[i]) {
-        case '-': str[i]='/'; break;
-        case '.': str[i]='='; break;
-        case '_': str[i]='+'; break;
-        }
-    }
-    
-    decrypted = php_base64_decode((unsigned char *)str, padded_len, &len);
-    if (decrypted == NULL || len < 2*16 || (len % 16) != 0) {
-error_out:
-        if (decrypted != NULL) {
-            efree(decrypted);
-        }
-        if (orig_len) {
-            *orig_len = 0;
-        }
-        return NULL;
-    }
-    
-    for (i=len-16, tmp=decrypted+i; i>=0; i-=16, tmp-=16) {
-    suhosin_aes_decrypt((char *)tmp TSRMLS_CC);
-    if (i > 0) {
-        int j;
-        for (j=0; j<16; j++) tmp[j] ^= tmp[j-16];
-    }
-    }
-    
-    /* retrieve orig_len */
-    o_len = decrypted[15];
-    o_len <<= 8;
-    o_len |= decrypted[14];
-    o_len <<= 8;
-    o_len |= decrypted[13];
-    o_len <<= 8;
-    o_len |= decrypted[12];
-    
-    if (o_len < 0 || o_len > len-16) {
-        goto error_out;
-    }
-
-    /* calculate check value */
-    for (i = 0; i<vlen; i++) {
-        check = (check << 3) | (check >> (32-3));
-        check += check << 1;
-        check ^= (unsigned char)var[i];
-    }
-    for (i = 0; i<o_len; i++) {
-        check = (check << 3) | (check >> (32-3));
-        check += check << 1;
-        check ^= decrypted[16+i];
-    }
-    
-    /* check value */
-    invalid = (decrypted[8] != (check & 0xff)) || 
-           (decrypted[9] != ((check >> 8) & 0xff)) || 
-               (decrypted[10] != ((check >> 16) & 0xff)) || 
-               (decrypted[11] != ((check >> 24) & 0xff));
-    
-    /* check IP */
-    if (check_ra > 0) {
-        if (check_ra > 4) {
-            check_ra = 4;
-        }
-        suhosin_get_ipv4(&buf[0] TSRMLS_CC);
-        if (memcmp(buf, decrypted+4, check_ra) != 0) {
-            goto error_out;
-        }
-    }
-    
-    if (invalid) {
-        goto error_out;
-    }
-    
-    if (orig_len) {
-        *orig_len = o_len;
-    }
-    
-    memmove(decrypted, decrypted+16, o_len);
-    decrypted[o_len] = 0;
-    /* we do not realloc() here because 16 byte less 
-       is simply not worth the overhead */  
-    return (char *)decrypted;
-}
-
-char *suhosin_generate_key(char *key, zend_bool ua, zend_bool dr, long raddr, char *cryptkey TSRMLS_DC)
-{
-    char *_ua = NULL;
-    char *_dr = NULL;
-    char *_ra = NULL;
-    suhosin_SHA256_CTX ctx;
-    
-    if (ua) {
-        _ua = suhosin_getenv("HTTP_USER_AGENT", sizeof("HTTP_USER_AGENT")-1 TSRMLS_CC);
-    }
-    
-    if (dr) {
-        _dr = suhosin_getenv("DOCUMENT_ROOT", sizeof("DOCUMENT_ROOT")-1 TSRMLS_CC);
-    }
-    
-    if (raddr > 0) {
-        _ra = suhosin_getenv("REMOTE_ADDR", sizeof("REMOTE_ADDR")-1 TSRMLS_CC);
-    }
-    
-    SDEBUG("(suhosin_generate_key) KEY: %s - UA: %s - DR: %s - RA: %s", key,_ua,_dr,_ra);
-    
-    suhosin_SHA256Init(&ctx);
-    if (key == NULL || *key == 0) {
-        suhosin_SHA256Update(&ctx, (unsigned char*)"D3F4UL7", strlen("D3F4UL7"));
-    } else {
-        suhosin_SHA256Update(&ctx, (unsigned char*)key, strlen(key));
-    }
-    if (_ua) {
-        suhosin_SHA256Update(&ctx, (unsigned char*)_ua, strlen(_ua));
-    }
-    if (_dr) {
-        suhosin_SHA256Update(&ctx, (unsigned char*)_dr, strlen(_dr));
-    }
-    if (_ra) {
-        if (raddr >= 4) {
-            suhosin_SHA256Update(&ctx, (unsigned char*)_ra, strlen(_ra));
-        } else {
-            long dots = 0;
-            char *tmp = _ra;
-            
-            while (*tmp) {
-                if (*tmp == '.') {
-                    dots++;
-                    if (dots == raddr) {
-                        break;
-                    }
-                }
-                tmp++;
-            }
-            suhosin_SHA256Update(&ctx, (unsigned char*)_ra, tmp-_ra);
-        }
-    }
-    suhosin_SHA256Final((unsigned char *)cryptkey, &ctx);
-    cryptkey[32] = 0; /* uhmm... not really a string */
-    
-    return cryptkey;
-}
 
 
 static int (*old_OnUpdateSaveHandler)(zend_ini_entry *entry, char *new_value, uint new_value_length, void *mh_arg1, void *mh_arg2, void *mh_arg3, int stage TSRMLS_DC) = NULL;
@@ -1152,6 +437,21 @@ void suhosin_unhook_session(TSRMLS_D)
 
 }
 
+#else /* HAVE_PHP_SESSION */
+
+#warning BUILDING SUHOSIN WITHOUT SESSION SUPPORT
+
+void suhosin_hook_session(TSRMLS_D)
+{
+}
+
+void suhosin_unhook_session(TSRMLS_D)
+{
+}
+
+#endif /* HAVE_PHP_SESSION */
+
+
 /*
  * Local variables:
  * tab-width: 4