Tue Aug 20 16:35:16 2013

Asterisk developer's documentation


ssl.c File Reference

Common OpenSSL support code. More...

#include "asterisk.h"
#include <openssl/ssl.h>
#include <openssl/err.h>
#include "asterisk/_private.h"
#include "asterisk/utils.h"
#include "asterisk/lock.h"

Go to the source code of this file.

Functions

int ast_ssl_init (void)
static void ssl_lock (int mode, int n, const char *file, int line)
static unsigned long ssl_threadid (void)

Variables

static ast_mutex_tssl_locks
static int ssl_num_locks

Detailed Description

Common OpenSSL support code.

Author:
Russell Bryant <russell@digium.com>

Definition in file ssl.c.


Function Documentation

int ast_ssl_init ( void   ) 

Provided by ssl.c

Definition at line 77 of file ssl.c.

References ast_calloc, ast_mutex_init, ssl_lock(), and ssl_threadid().

Referenced by main().

00078 {
00079 #ifdef HAVE_OPENSSL
00080    unsigned int i;
00081 
00082    SSL_library_init();
00083    SSL_load_error_strings();
00084    ERR_load_BIO_strings();
00085 
00086    /* Make OpenSSL thread-safe. */
00087 
00088    CRYPTO_set_id_callback(ssl_threadid);
00089 
00090    ssl_num_locks = CRYPTO_num_locks();
00091    if (!(ssl_locks = ast_calloc(ssl_num_locks, sizeof(ssl_locks[0])))) {
00092       return -1;
00093    }
00094    for (i = 0; i < ssl_num_locks; i++) {
00095       ast_mutex_init(&ssl_locks[i]);
00096    }
00097    CRYPTO_set_locking_callback(ssl_lock);
00098 
00099 #endif /* HAVE_OPENSSL */
00100    return 0;
00101 }

static void ssl_lock ( int  mode,
int  n,
const char *  file,
int  line 
) [static]

Definition at line 55 of file ssl.c.

References ast_log(), ast_mutex_lock, ast_mutex_unlock, and LOG_ERROR.

Referenced by ast_ssl_init().

00056 {
00057    if (n < 0 || n >= ssl_num_locks) {
00058       ast_log(LOG_ERROR, "OpenSSL is full of LIES!!! - "
00059             "ssl_num_locks '%d' - n '%d'\n",
00060             ssl_num_locks, n);
00061       return;
00062    }
00063 
00064    if (mode & CRYPTO_LOCK) {
00065       ast_mutex_lock(&ssl_locks[n]);
00066    } else {
00067       ast_mutex_unlock(&ssl_locks[n]);
00068    }
00069 }

static unsigned long ssl_threadid ( void   )  [static]

Definition at line 50 of file ssl.c.

Referenced by ast_ssl_init().

00051 {
00052    return (unsigned long)pthread_self();
00053 }


Variable Documentation

Definition at line 46 of file ssl.c.

int ssl_num_locks [static]

Definition at line 48 of file ssl.c.


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