The open_tun_dco_generic already allocates the actual_name string, this
shadows the allocation in the FreeBSD/Linux specific methods.
The HMAC leaks are just forgotten frees/deinitialisations.
Found-By: clang with asan
Patch v2: rebase. Include linux bits accidentially forgotten.
Change-Id: I3c344af047abe94c0178bde1781eb450f10d157d
Signed-off-by: Arne Schwabe <a...@rfc2549.org>
---
src/openvpn/dco_freebsd.c | 1 -
src/openvpn/dco_linux.c | 1 -
src/openvpn/init.c | 2 ++
src/openvpn/mudp.c | 1 +
src/openvpn/ssl.c | 11 +++++++++++
src/openvpn/ssl.h | 6 ++++++
6 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/src/openvpn/dco_freebsd.c b/src/openvpn/dco_freebsd.c
index 92de5f04b..e605f2a9d 100644
--- a/src/openvpn/dco_freebsd.c
+++ b/src/openvpn/dco_freebsd.c
@@ -230,7 +230,6 @@ create_interface(struct tuntap *tt, const char *dev)
}
snprintf(tt->dco.ifname, IFNAMSIZ, "%s", ifr.ifr_data);
- tt->actual_name = string_alloc(tt->dco.ifname, NULL);
/* see "Interface Flags" in ifnet(9) */
int i = IFF_POINTOPOINT | IFF_MULTICAST;
diff --git a/src/openvpn/dco_linux.c b/src/openvpn/dco_linux.c
index 2b349529f..0f5fc48d9 100644
--- a/src/openvpn/dco_linux.c
+++ b/src/openvpn/dco_linux.c
@@ -457,7 +457,6 @@ open_tun_dco(struct tuntap *tt, openvpn_net_ctx_t *ctx,
const char *dev)
msg(M_FATAL, "DCO: cannot retrieve ifindex for interface %s", dev);
}
- tt->actual_name = string_alloc(dev, NULL);
tt->dco.dco_message_peer_id = -1;
ovpn_dco_register(&tt->dco);
diff --git a/src/openvpn/init.c b/src/openvpn/init.c
index 124ac76bd..e59edd742 100644
--- a/src/openvpn/init.c
+++ b/src/openvpn/init.c
@@ -3881,6 +3881,8 @@ do_close_tls(struct context *c)
md_ctx_cleanup(c->c2.pulled_options_state);
md_ctx_free(c->c2.pulled_options_state);
}
+
+ tls_auth_standalone_free(c->c2.tls_auth_standalone);
}
/*
diff --git a/src/openvpn/mudp.c b/src/openvpn/mudp.c
index 8698aefc8..813160639 100644
--- a/src/openvpn/mudp.c
+++ b/src/openvpn/mudp.c
@@ -61,6 +61,7 @@ send_hmac_reset_packet(struct multi_context *m,
m->hmac_reply = c->c2.buffers->aux_buf;
m->hmac_reply_dest = &m->top.c2.from;
msg(D_MULTI_DEBUG, "Reset packet from client, sending HMAC based reset
challenge");
+ free_buf(&buf);
}
diff --git a/src/openvpn/ssl.c b/src/openvpn/ssl.c
index 78cec90a1..fe6390fad 100644
--- a/src/openvpn/ssl.c
+++ b/src/openvpn/ssl.c
@@ -1361,6 +1361,17 @@ tls_auth_standalone_init(struct tls_options *tls_options,
return tas;
}
+void
+tls_auth_standalone_free(struct tls_auth_standalone *tas)
+{
+ if (!tas)
+ {
+ return;
+ }
+
+ packet_id_free(&tas->tls_wrap.opt.packet_id);
+}
+
/*
* Set local and remote option compatibility strings.
* Used to verify compatibility of local and remote option
diff --git a/src/openvpn/ssl.h b/src/openvpn/ssl.h
index 58ff4b9b4..a050cd5c9 100644
--- a/src/openvpn/ssl.h
+++ b/src/openvpn/ssl.h
@@ -180,6 +180,12 @@ void tls_multi_init_finalize(struct tls_multi *multi, int
tls_mtu);
struct tls_auth_standalone *tls_auth_standalone_init(struct tls_options
*tls_options,
struct gc_arena *gc);
+/**
+ * Frees a standalone tls-auth verification object.
+ * @param tas the object to free. May be NULL.
+ */
+void tls_auth_standalone_free(struct tls_auth_standalone *tas);
+
/*
* Setups the control channel frame size parameters from the data channel
* parameters
--
2.37.1 (Apple Git-137.1)
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