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fix thread-safe openssl

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This commit is contained in:
vemax78 2013-05-23 22:38:48 +02:00
parent 0a2ae76acc
commit 8df566f36e
1 changed files with 68 additions and 0 deletions
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68
src/common/capwap_dtls.c
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@ -8,6 +8,12 @@
#include <openssl/engine.h>
#include <openssl/conf.h>
#ifdef CAPWAP_MULTITHREADING_ENABLE
#include <pthread.h>
static pthread_mutex_t* l_mutex_buffer = NULL;
#endif
#define CAPWAP_DTLS_CERT_VERIFY_DEPTH 1
#define CAPWAP_DTLS_MTU_SIZE 16384
@ -238,17 +244,79 @@ static long capwap_bio_method_ctrl(BIO* bio, int cmd, long num, void* ptr) {
return result;
}
#ifdef CAPWAP_MULTITHREADING_ENABLE
/* */
unsigned long capwap_openssl_idcallback(void) {
return (unsigned long)pthread_self();
}
/* */
void capwap_openssl_lockingcallback(int mode, int n, const char* file, int line) {
ASSERT(l_mutex_buffer != NULL);
if (mode & CRYPTO_LOCK) {
pthread_mutex_lock(&l_mutex_buffer[n]);
} else {
pthread_mutex_unlock(&l_mutex_buffer[n]);
}
}
#endif
/* */
int capwap_crypt_init() {
#ifdef CAPWAP_MULTITHREADING_ENABLE
int i;
int numlocks;
#endif
SSL_load_error_strings();
SSL_library_init();
OpenSSL_add_all_algorithms();
#ifdef CAPWAP_MULTITHREADING_ENABLE
/* Configure OpenSSL thread-safe */
numlocks = CRYPTO_num_locks();
l_mutex_buffer = (pthread_mutex_t*)capwap_alloc(numlocks * sizeof(pthread_mutex_t));
if (!l_mutex_buffer) {
capwap_outofmemory();
}
for (i = 0; i < numlocks; i++) {
pthread_mutex_init(&l_mutex_buffer[i], NULL);
}
/* OpenSSL thread-safe callbacks */
CRYPTO_set_id_callback(capwap_openssl_idcallback);
CRYPTO_set_locking_callback(capwap_openssl_lockingcallback);
#endif
return 1;
}
/* */
void capwap_crypt_free() {
#ifdef CAPWAP_MULTITHREADING_ENABLE
int i;
int numlocks;
ASSERT(l_mutex_buffer != NULL);
/* */
CRYPTO_set_id_callback(NULL);
CRYPTO_set_locking_callback(NULL);
/* */
numlocks = CRYPTO_num_locks();
for (i = 0; i < numlocks; i++) {
pthread_mutex_destroy(&l_mutex_buffer[i]);
}
capwap_free(l_mutex_buffer);
l_mutex_buffer = NULL;
#endif
/* */
ERR_remove_state(0);
ERR_free_strings();