Module: kamailio
Branch: master
Commit: 9d6bfb96528c49e6aaa39aa47be877ca528c3537
URL: 
https://github.com/kamailio/kamailio/commit/9d6bfb96528c49e6aaa39aa47be877ca528c3537

Author: Victor Seva <linuxman...@torreviejawireless.org>
Committer: Victor Seva <linuxman...@torreviejawireless.org>
Date: 2023-06-20T12:51:16+02:00

tls: OPENSSL_fork_[prepare|parent|child] deprecated at openssl 3.0

>From https://www.openssl.org/docs/man3.0/man3/OPENSSL_fork_prepare.html:

> OPENSSL_fork_prepare, OPENSSL_fork_parent, OPENSSL_fork_child have been
> deprecated since OpenSSL 3.0.
>
> These methods are currently unused, and as such, no replacement methods
> are required or planned.
>
> OpenSSL has state that should be reset when a process forks. For
> example, the entropy pool used to generate random numbers (and therefore
> encryption keys) should not be shared across multiple programs. The
> OPENSSL_fork_prepare(), OPENSSL_fork_parent(), and OPENSSL_fork_child()
> functions are used to reset this internal state.
>
> OPENSSL_init_crypto(3) will register these functions with the
> appropriate handler, when the OPENSSL_INIT_ATFORK flag is used

---

Modified: src/modules/tls/tls_init.c
Modified: src/modules/tls/tls_mod.c

---

Diff:  
https://github.com/kamailio/kamailio/commit/9d6bfb96528c49e6aaa39aa47be877ca528c3537.diff
Patch: 
https://github.com/kamailio/kamailio/commit/9d6bfb96528c49e6aaa39aa47be877ca528c3537.patch

---

diff --git a/src/modules/tls/tls_init.c b/src/modules/tls/tls_init.c
index 0a2f13a77b2..cb035ee24fa 100644
--- a/src/modules/tls/tls_init.c
+++ b/src/modules/tls/tls_init.c
@@ -745,7 +745,7 @@ int tls_h_mod_pre_init_f(void)
        LM_DBG("preparing tls env for modules initialization\n");
 #if OPENSSL_VERSION_NUMBER >= 0x010100000L && !defined(LIBRESSL_VERSION_NUMBER)
        LM_DBG("preparing tls env for modules initialization (libssl >=1.1)\n");
-       OPENSSL_init_ssl(0, NULL);
+       OPENSSL_init_ssl(OPENSSL_INIT_ATFORK, NULL);
 #else
        LM_DBG("preparing tls env for modules initialization (libssl <=1.0)\n");
        SSL_library_init();
diff --git a/src/modules/tls/tls_mod.c b/src/modules/tls/tls_mod.c
index 3f42073b175..156eff81c76 100644
--- a/src/modules/tls/tls_mod.c
+++ b/src/modules/tls/tls_mod.c
@@ -452,7 +452,8 @@ static int mod_child(int rank)
                                        < 0)
                                return -1;
                }
-#if OPENSSL_VERSION_NUMBER >= 0x010101000L
+#if OPENSSL_VERSION_NUMBER >= 0x010101000L \
+               && OPENSSL_VERSION_NUMBER < 0x030000000L
                if(ksr_tls_init_mode & TLS_MODE_FORK_PREPARE) {
                        OPENSSL_fork_prepare();
                }
@@ -460,7 +461,8 @@ static int mod_child(int rank)
                return 0;
        }
 
-#if OPENSSL_VERSION_NUMBER >= 0x010101000L
+#if OPENSSL_VERSION_NUMBER >= 0x010101000L \
+               && OPENSSL_VERSION_NUMBER < 0x030000000L
        if(ksr_tls_init_mode & TLS_MODE_FORK_PREPARE) {
                if(rank == PROC_POSTCHILDINIT) {
                        /*

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