#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include "cryptlib.h"
#include <openssl/lhash.h>
#include <openssl/crypto.h>
#include <openssl/buffer.h>
#include <openssl/bio.h>
#include <openssl/err.h>
#define err_clear_data(p,i) \
do { \
if (((p)->err_data[i] != NULL) && \
(p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
{ \
OPENSSL_free((p)->err_data[i]); \
(p)->err_data[i]=NULL; \
} \
(p)->err_data_flags[i]=0; \
} while(0)
#define err_clear(p,i) \
do { \
(p)->err_flags[i]=0; \
(p)->err_buffer[i]=0; \
err_clear_data(p,i); \
(p)->err_file[i]=NULL; \
(p)->err_line[i]= -1; \
} while(0)
static void err_load_strings(int lib, ERR_STRING_DATA *str);
static void ERR_STATE_free(ERR_STATE *s);
struct st_ERR_FNS
{
LHASH *(*cb_err_get)(int create);
void (*cb_err_del)(void);
ERR_STRING_DATA *(*cb_err_get_item)(const ERR_STRING_DATA *);
ERR_STRING_DATA *(*cb_err_set_item)(ERR_STRING_DATA *);
ERR_STRING_DATA *(*cb_err_del_item)(ERR_STRING_DATA *);
LHASH *(*cb_thread_get)(int create);
void (*cb_thread_release)(LHASH **hash);
ERR_STATE *(*cb_thread_get_item)(const ERR_STATE *);
ERR_STATE *(*cb_thread_set_item)(ERR_STATE *);
void (*cb_thread_del_item)(const ERR_STATE *);
int (*cb_get_next_lib)(void);
};
static LHASH *int_err_get(int create);
static void int_err_del(void);
static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *);
static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *);
static LHASH *int_thread_get(int create);
static void int_thread_release(LHASH **hash);
static ERR_STATE *int_thread_get_item(const ERR_STATE *);
static ERR_STATE *int_thread_set_item(ERR_STATE *);
static void int_thread_del_item(const ERR_STATE *);
static int int_err_get_next_lib(void);
static const ERR_FNS err_defaults =
{
int_err_get,
int_err_del,
int_err_get_item,
int_err_set_item,
int_err_del_item,
int_thread_get,
int_thread_release,
int_thread_get_item,
int_thread_set_item,
int_thread_del_item,
int_err_get_next_lib
};
static const ERR_FNS *err_fns = NULL;
#define ERRFN(a) err_fns->cb_##a
static LHASH *int_error_hash = NULL;
static LHASH *int_thread_hash = NULL;
static int int_thread_hash_references = 0;
static int int_err_library_number= ERR_LIB_USER;
static void err_fns_check(void)
{
if (err_fns) return;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (!err_fns)
err_fns = &err_defaults;
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
}
const ERR_FNS *ERR_get_implementation(void)
{
err_fns_check();
return err_fns;
}
int ERR_set_implementation(const ERR_FNS *fns)
{
int ret = 0;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (!err_fns)
{
err_fns = fns;
ret = 1;
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return ret;
}
static unsigned long err_hash(const void *a_void);
static int err_cmp(const void *a_void, const void *b_void);
static unsigned long pid_hash(const void *pid_void);
static int pid_cmp(const void *a_void,const void *pid_void);
static LHASH *int_err_get(int create)
{
LHASH *ret = NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (!int_error_hash && create)
{
CRYPTO_push_info("int_err_get (err.c)");
int_error_hash = lh_new(err_hash, err_cmp);
CRYPTO_pop_info();
}
if (int_error_hash)
ret = int_error_hash;
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return ret;
}
static void int_err_del(void)
{
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (int_error_hash)
{
lh_free(int_error_hash);
int_error_hash = NULL;
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
}
static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
{
ERR_STRING_DATA *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(err_get)(0);
if (!hash)
return NULL;
CRYPTO_r_lock(CRYPTO_LOCK_ERR);
p = (ERR_STRING_DATA *)lh_retrieve(hash, d);
CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
return p;
}
static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *d)
{
ERR_STRING_DATA *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(err_get)(1);
if (!hash)
return NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p = (ERR_STRING_DATA *)lh_insert(hash, d);
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return p;
}
static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *d)
{
ERR_STRING_DATA *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(err_get)(0);
if (!hash)
return NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p = (ERR_STRING_DATA *)lh_delete(hash, d);
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return p;
}
static LHASH *int_thread_get(int create)
{
LHASH *ret = NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (!int_thread_hash && create)
{
CRYPTO_push_info("int_thread_get (err.c)");
int_thread_hash = lh_new(pid_hash, pid_cmp);
CRYPTO_pop_info();
}
if (int_thread_hash)
{
int_thread_hash_references++;
ret = int_thread_hash;
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return ret;
}
static void int_thread_release(LHASH **hash)
{
int i;
if (hash == NULL || *hash == NULL)
return;
i = CRYPTO_add(&int_thread_hash_references, -1, CRYPTO_LOCK_ERR);
#ifdef REF_PRINT
fprintf(stderr,"%4d:%s\n",int_thread_hash_references,"ERR");
#endif
if (i > 0) return;
#ifdef REF_CHECK
if (i < 0)
{
fprintf(stderr,"int_thread_release, bad reference count\n");
abort();
}
#endif
*hash = NULL;
}
static ERR_STATE *int_thread_get_item(const ERR_STATE *d)
{
ERR_STATE *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(thread_get)(0);
if (!hash)
return NULL;
CRYPTO_r_lock(CRYPTO_LOCK_ERR);
p = (ERR_STATE *)lh_retrieve(hash, d);
CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
ERRFN(thread_release)(&hash);
return p;
}
static ERR_STATE *int_thread_set_item(ERR_STATE *d)
{
ERR_STATE *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(thread_get)(1);
if (!hash)
return NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p = (ERR_STATE *)lh_insert(hash, d);
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
ERRFN(thread_release)(&hash);
return p;
}
static void int_thread_del_item(const ERR_STATE *d)
{
ERR_STATE *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(thread_get)(0);
if (!hash)
return;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p = (ERR_STATE *)lh_delete(hash, d);
if (int_thread_hash_references == 1
&& int_thread_hash && (lh_num_items(int_thread_hash) == 0))
{
lh_free(int_thread_hash);
int_thread_hash = NULL;
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
ERRFN(thread_release)(&hash);
if (p)
ERR_STATE_free(p);
}
static int int_err_get_next_lib(void)
{
int ret;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
ret = int_err_library_number++;
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return ret;
}
static void ERR_STATE_free(ERR_STATE *s)
{
int i;
if (s == NULL)
return;
for (i=0; i<ERR_NUM_ERRORS; i++)
{
err_clear_data(s,i);
}
OPENSSL_free(s);
}
static void err_load_strings(int lib, ERR_STRING_DATA *str)
{
while (str->error)
{
if (lib)
str->error|=ERR_PACK(lib,0,0);
ERRFN(err_set_item)(str);
str++;
}
}
void ERR_load_strings(int lib, ERR_STRING_DATA *str)
{
err_fns_check();
err_load_strings(lib, str);
}
void ERR_unload_strings(int lib, ERR_STRING_DATA *str)
{
while (str->error)
{
if (lib)
str->error|=ERR_PACK(lib,0,0);
ERRFN(err_del_item)(str);
str++;
}
}
void ERR_free_strings(void)
{
err_fns_check();
ERRFN(err_del)();
}
LHASH *ERR_get_string_table(void)
{
err_fns_check();
return ERRFN(err_get)(0);
}
LHASH *ERR_get_err_state_table(void)
{
err_fns_check();
return ERRFN(thread_get)(0);
}
void ERR_release_err_state_table(LHASH **hash)
{
err_fns_check();
ERRFN(thread_release)(hash);
}
const char *ERR_lib_error_string(unsigned long e)
{
ERR_STRING_DATA d,*p;
unsigned long l;
err_fns_check();
l=ERR_GET_LIB(e);
d.error=ERR_PACK(l,0,0);
p=ERRFN(err_get_item)(&d);
return((p == NULL)?NULL:p->string);
}
const char *ERR_func_error_string(unsigned long e)
{
ERR_STRING_DATA d,*p;
unsigned long l,f;
err_fns_check();
l=ERR_GET_LIB(e);
f=ERR_GET_FUNC(e);
d.error=ERR_PACK(l,f,0);
p=ERRFN(err_get_item)(&d);
return((p == NULL)?NULL:p->string);
}
const char *ERR_reason_error_string(unsigned long e)
{
ERR_STRING_DATA d,*p=NULL;
unsigned long l,r;
err_fns_check();
l=ERR_GET_LIB(e);
r=ERR_GET_REASON(e);
d.error=ERR_PACK(l,0,r);
p=ERRFN(err_get_item)(&d);
if (!p)
{
d.error=ERR_PACK(0,0,r);
p=ERRFN(err_get_item)(&d);
}
return((p == NULL)?NULL:p->string);
}
static unsigned long err_hash(const void *a_void)
{
unsigned long ret,l;
l=((const ERR_STRING_DATA *)a_void)->error;
ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
return(ret^ret%19*13);
}
static int err_cmp(const void *a_void, const void *b_void)
{
return((int)(((const ERR_STRING_DATA *)a_void)->error -
((const ERR_STRING_DATA *)b_void)->error));
}
static unsigned long pid_hash(const void *a_void)
{
return(((const ERR_STATE *)a_void)->pid*13);
}
static int pid_cmp(const void *a_void, const void *b_void)
{
return((int)((long)((const ERR_STATE *)a_void)->pid -
(long)((const ERR_STATE *)b_void)->pid));
}
#ifdef OPENSSL_FIPS
static void int_err_remove_state(unsigned long pid)
#else
void ERR_remove_state(unsigned long pid)
#endif
{
ERR_STATE tmp;
err_fns_check();
if (pid == 0)
pid=(unsigned long)CRYPTO_thread_id();
tmp.pid=pid;
ERRFN(thread_del_item)(&tmp);
}
#ifdef OPENSSL_FIPS
static ERR_STATE *int_err_get_state(void)
#else
ERR_STATE *ERR_get_state(void)
#endif
{
static ERR_STATE fallback;
ERR_STATE *ret,tmp,*tmpp=NULL;
int i;
unsigned long pid;
err_fns_check();
pid=(unsigned long)CRYPTO_thread_id();
tmp.pid=pid;
ret=ERRFN(thread_get_item)(&tmp);
if (ret == NULL)
{
ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
if (ret == NULL) return(&fallback);
ret->pid=pid;
ret->top=0;
ret->bottom=0;
for (i=0; i<ERR_NUM_ERRORS; i++)
{
ret->err_data[i]=NULL;
ret->err_data_flags[i]=0;
}
tmpp = ERRFN(thread_set_item)(ret);
if (ERRFN(thread_get_item)(ret) != ret)
{
ERR_STATE_free(ret);
return(&fallback);
}
if (tmpp)
ERR_STATE_free(tmpp);
}
return ret;
}
#ifdef OPENSSL_FIPS
void int_ERR_lib_init(void)
{
int_ERR_set_state_func(int_err_get_state, int_err_remove_state);
}
#endif
int ERR_get_next_error_library(void)
{
err_fns_check();
return ERRFN(get_next_lib)();
}