From 8a24acab67889f15ca1d4d53180240fad60142e5 Mon Sep 17 00:00:00 2001 From: dvossel Date: Thu, 4 Jun 2009 19:00:15 +0000 Subject: Additional updates to AST-2009-001 git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@199138 f38db490-d61c-443f-a65b-d21fe96a405b --- channels/chan_iax2.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'channels') diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c index 32a730a16..e317a635f 100644 --- a/channels/chan_iax2.c +++ b/channels/chan_iax2.c @@ -575,7 +575,8 @@ struct chan_iax2_pvt { AST_STRING_FIELD(mohinterpret); AST_STRING_FIELD(mohsuggest); ); - + /*! AUTHREJ all AUTHREP frames */ + int authrej; /*! permitted authentication methods */ int authmethods; /*! permitted encryption methods */ @@ -5556,6 +5557,18 @@ static int check_access(int callno, struct sockaddr_in *sin, struct iax_ies *ies ast_string_field_set(iaxs[callno], secret, user->secret); res = 0; user = user_unref(user); + } else { + /* user was not found, but we should still fake an AUTHREQ. + * Set authmethods to the last known authmethod used by the system + * Set a fake secret, it's not looked at, just required to attempt authentication. + * Set authrej so the AUTHREP is rejected without even looking at its contents */ + iaxs[callno]->authmethods = last_authmethod ? last_authmethod : (IAX_AUTH_MD5 | IAX_AUTH_PLAINTEXT); + ast_string_field_set(iaxs[callno], secret, "badsecret"); + iaxs[callno]->authrej = 1; + if (!ast_strlen_zero(iaxs[callno]->username)) { + /* only send the AUTHREQ if a username was specified. */ + res = 0; + } } ast_set2_flag(iaxs[callno], iax2_getpeertrunk(*sin), IAX_TRUNK); return res; @@ -5662,6 +5675,9 @@ static int authenticate_verify(struct chan_iax2_pvt *p, struct iax_ies *ies) .name = p->username, }; + if (p->authrej) { + return res; + } user = ao2_find(users, &tmp_user, OBJ_POINTER); if (user) { if (ast_test_flag(p, IAX_MAXAUTHREQ)) { -- cgit v1.2.3