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-rw-r--r--plugins/mod_tls.lua40
1 files changed, 31 insertions, 9 deletions
diff --git a/plugins/mod_tls.lua b/plugins/mod_tls.lua
index 8c0c4e20..931701f5 100644
--- a/plugins/mod_tls.lua
+++ b/plugins/mod_tls.lua
@@ -35,9 +35,10 @@ local host = hosts[module.host];
local ssl_ctx_c2s, ssl_ctx_s2sout, ssl_ctx_s2sin;
local ssl_cfg_c2s, ssl_cfg_s2sout, ssl_cfg_s2sin;
+local err_c2s, err_s2sin, err_s2sout;
function module.load(reload)
- local NULL, err = {};
+ local NULL = {};
local modhost = module.host;
local parent = modhost:match("%.(.*)$");
@@ -53,16 +54,20 @@ function module.load(reload)
local host_s2s = rawgetopt(modhost, "s2s_ssl") or parent_s2s;
module:log("debug", "Creating context for c2s");
- ssl_ctx_c2s, err, ssl_cfg_c2s = create_context(host.host, "server", host_c2s, host_ssl, global_c2s); -- for incoming client connections
- if not ssl_ctx_c2s then module:log("error", "Error creating context for c2s: %s", err); end
+ local request_client_certs = { verify = { "peer", "client_once", }; };
+
+ ssl_ctx_c2s, err_c2s, ssl_cfg_c2s = create_context(host.host, "server", host_c2s, host_ssl, global_c2s); -- for incoming client connections
+ if not ssl_ctx_c2s then module:log("error", "Error creating context for c2s: %s", err_c2s); end
module:log("debug", "Creating context for s2sout");
- ssl_ctx_s2sout, err, ssl_cfg_s2sout = create_context(host.host, "client", host_s2s, host_ssl, global_s2s); -- for outgoing server connections
- if not ssl_ctx_s2sout then module:log("error", "Error creating contexts for s2sout: %s", err); end
+ -- for outgoing server connections
+ ssl_ctx_s2sout, err_s2sout, ssl_cfg_s2sout = create_context(host.host, "client", host_s2s, host_ssl, global_s2s, request_client_certs);
+ if not ssl_ctx_s2sout then module:log("error", "Error creating contexts for s2sout: %s", err_s2sout); end
module:log("debug", "Creating context for s2sin");
- ssl_ctx_s2sin, err, ssl_cfg_s2sin = create_context(host.host, "server", host_s2s, host_ssl, global_s2s); -- for incoming server connections
- if not ssl_ctx_s2sin then module:log("error", "Error creating contexts for s2sin: %s", err); end
+ -- for incoming server connections
+ ssl_ctx_s2sin, err_s2sin, ssl_cfg_s2sin = create_context(host.host, "server", host_s2s, host_ssl, global_s2s, request_client_certs);
+ if not ssl_ctx_s2sin then module:log("error", "Error creating contexts for s2sin: %s", err_s2sin); end
if reload then
module:log("info", "Certificates reloaded");
@@ -83,12 +88,21 @@ local function can_do_tls(session)
return session.ssl_ctx;
end
if session.type == "c2s_unauthed" then
+ if not ssl_ctx_c2s and c2s_require_encryption then
+ session.log("error", "No TLS context available for c2s. Earlier error was: %s", err_c2s);
+ end
session.ssl_ctx = ssl_ctx_c2s;
session.ssl_cfg = ssl_cfg_c2s;
elseif session.type == "s2sin_unauthed" and allow_s2s_tls then
+ if not ssl_ctx_s2sin and s2s_require_encryption then
+ session.log("error", "No TLS context available for s2sin. Earlier error was: %s", err_s2sin);
+ end
session.ssl_ctx = ssl_ctx_s2sin;
session.ssl_cfg = ssl_cfg_s2sin;
elseif session.direction == "outgoing" and allow_s2s_tls then
+ if not ssl_ctx_s2sout and s2s_require_encryption then
+ session.log("error", "No TLS context available for s2sout. Earlier error was: %s", err_s2sout);
+ end
session.ssl_ctx = ssl_ctx_s2sout;
session.ssl_cfg = ssl_cfg_s2sout;
else
@@ -107,6 +121,7 @@ module:hook("stanza/urn:ietf:params:xml:ns:xmpp-tls:starttls", function(event)
local origin = event.origin;
if can_do_tls(origin) then
(origin.sends2s or origin.send)(starttls_proceed);
+ if origin.destroyed then return end
origin:reset_stream();
origin.conn:starttls(origin.ssl_ctx);
origin.log("debug", "TLS negotiation started for %s...", origin.type);
@@ -136,8 +151,15 @@ end);
-- For s2sout connections, start TLS if we can
module:hook_tag("http://etherx.jabber.org/streams", "features", function (session, stanza)
module:log("debug", "Received features element");
- if can_do_tls(session) and stanza:get_child("starttls", xmlns_starttls) then
- module:log("debug", "%s is offering TLS, taking up the offer...", session.to_host);
+ if can_do_tls(session) then
+ if stanza:get_child("starttls", xmlns_starttls) then
+ module:log("debug", "%s is offering TLS, taking up the offer...", session.to_host);
+ elseif s2s_require_encryption then
+ module:log("debug", "%s is *not* offering TLS, trying anyways!", session.to_host);
+ else
+ module:log("debug", "%s is not offering TLS", session.to_host);
+ return;
+ end
session.sends2s(starttls_initiate);
return true;
end