[Serusers] 483 Too many Hops Error with SER Presence Agent
Greger V. Teigre
greger at teigre.com
Tue Nov 27 08:57:19 CET 2007
The uri==myself test is false and the REGISTER is forwarded based on the
request uri.
Make sure that you try to register with a domain you have an alias for.
g-)
Carlos Angeles wrote:
> Hi...
>
> I have installed SER-0.10.99 with presence capabilities following the presence hadnbook, the server is running OK, but I have problems when I tried to register a client (x-lite). I am getting 483: Too many hops...
>
> What can be the problem?????
> Thank you for your help,
>
> Carlos
>
> Config file:
> debug=3 # debug level (cmd line: -dddddddddd)
> #fork=yes
> #log_stderror=no # (cmd line: -E)
> #memlog=5 # memory debug log level
> #log_facility=LOG_LOCAL0 # sets the facility used for logging (see syslog(3))
>
> check_via=no # (cmd. line: -v)
> dns=no # (cmd. line: -r)
> rev_dns=no # (cmd. line: -R)
> port=5060
> children=2
> alias="test-domain.com"
>
> #user=ser
> #group=ser
> #open_fd_limit=1024 # sets the open file descriptors limit
> mhomed=yes # usefull for multihomed hosts, small performance penalty
>
> #disable_tcp=yes
> #tcp_accept_aliases=yes # accepts the tcp alias via option (see NEWS)
> #tcp_poll_method="sigio_rt"
>
> # ------------------ module loading ----------------------------------
>
> # Uncomment this if you want to use SQL database
> loadmodule "/base/ser/directory/lib/ser/modules//sl.so"
> loadmodule "/base/ser/directory/lib/ser/modules/avp.so"
> loadmodule "/base/ser/directory/lib/ser/modules//avpops.so"
> loadmodule "/base/ser/directory/lib/ser/modules//tm.so"
> loadmodule "/base/ser/directory/lib/ser/modules//rr.so"
> loadmodule "/base/ser/directory/lib/ser/modules//maxfwd.so"
> loadmodule "/base/ser/directory/lib/ser/modules//usrloc.so"
> loadmodule "/base/ser/directory/lib/ser/modules//registrar.so"
> loadmodule "/base/ser/directory/lib/ser/modules//textops.so"
> loadmodule "/base/ser/directory/lib/ser/modules//mysql.so"
> loadmodule "/base/ser/directory/lib/ser/modules//dialog.so"
> loadmodule "/base/ser/directory/lib/ser/modules//rls.so"
> loadmodule "/base/ser/directory/lib/ser/modules/pa.so"
> loadmodule "/base/ser/directory/lib/ser/modules//presence_b2b.so"
> loadmodule "/base/ser/directory/lib/ser/modules//uri.so"
> loadmodule "/base/ser/directory/lib/ser/modules//uri_db.so"
> loadmodule "/base/ser/directory/lib/ser/modules//domain.so"
> loadmodule "/base/ser/directory/lib/ser/modules//fifo.so"
> loadmodule "/base/ser/directory/lib/ser/modules//xmlrpc.so"
> loadmodule "/base/ser/directory/lib/ser/modules//xlog.so"
> #loadmodule "/base/ser/directory/lib/ser/modules//unixsock.so"
>
> # Uncomment this if you want digest authentication
> # mysql.so must be loaded !
> loadmodule "/base/ser/directory/lib/ser/modules//auth.so"
> loadmodule "/base/ser/directory/lib/ser/modules//auth_db.so"
> loadmodule "/base/ser/directory/lib/ser/modules//msilo.so"
>
> # ----------------- setting module-specific parameters ---------------
>
> # modparam("msilo","registrar","sip:registrar at test-domain.com")
> modparam("msilo","use_contact",0)
> modparam("msilo","expire_time",7200)
>
> # -- usrloc params --
>
> # -- auth params --
> # Uncomment if you are using auth module
> #
> modparam("auth_db", "calculate_ha1", yes)
> #
> # If you set "calculate_ha1" parameter to yes (which true in this config),
> # uncomment also the following parameter)
> #
> modparam("auth_db", "password_column", "password")
>
> # -- rr params --
> # add value to ;lr param to make some broken UAs happy
> modparam("rr", "enable_full_lr", 1)
>
> modparam("rls", "min_expiration", 200)
> modparam("rls", "max_expiration", 300)
> modparam("rls", "default_expiration", 300)
> modparam("rls", "auth", "none")
> modparam("rls", "xcap_root", "http://localhost/xcap")
> modparam("rls", "reduce_xcap_needs", 1)
> modparam("rls", "db_mode", 0)
> modparam("rls", "db_url", "mysql://ser:heslo@localhost:3306/ser")
>
> modparam("pa", "use_db", 0)
> # allow storing authorization requests for offline users into database
> modparam("pa", "use_offline_winfo", 1)
> # how often try to remove old stored authorization requests
> modparam("pa", "offline_winfo_timer", 600)
> # how long stored authorization requests live
> modparam("pa", "offline_winfo_expiration", 600)
> modparam("pa", "db_url", "mysql://ser:heslo@localhost:3306/ser")
> # mode of PA authorization: none, implicit or xcap
> modparam("pa", "auth", "xcap")
> modparam("pa", "auth_xcap_root", "http://localhost/xcap")
> # do not authorize watcherinfo subscriptions
> modparam("pa", "winfo_auth", "none")
> # use only published information if set to 0
> modparam("pa", "use_callbacks", 1)
> # don't accept internal subscriptions from RLS, ...
> modparam("pa", "accept_internal_subscriptions", 0)
> # maximum value of Expires for subscriptions
> modparam("pa", "max_subscription_expiration", 600)
> # maximum value of Expires for publications
> modparam("pa", "max_publish_expiration", 120)
> # how often test if something changes and send NOTIFY
> modparam("pa", "timer_interval", 10)
>
> # route for generated SUBSCRIBE requests for presence
> modparam("presence_b2b", "presence_route", "")
> # waiting time from error to new attepmt about SUBSCRIBE
> modparam("presence_b2b", "on_error_retry_time", 60)
> # how long wait for NOTIFY with Subscription-Status=terminated after unsubscribe
> modparam("presence_b2b", "wait_for_term_notify", 33)
> # how long before expiration send renewal SUBSCRIBE request
> modparam("presence_b2b", "resubscribe_delta", 30)
> # minimal time to send renewal SUBSCRIBE request from receiving previous response
> modparam("presence_b2b", "min_resubscribe_time", 60)
> # default expiration timeout
> modparam("presence_b2b", "default_expiration", 3600)
> # process internal subscriptions to presence events
> modparam("presence_b2b", "handle_presence_subscriptions", 1)
>
> modparam("usrloc", "db_mode", 0)
> modparam("domain", "db_mode", 1)
> modparam("domain|uri_db|acc|auth_db|usrloc|msilo", "db_url", "mysql://ser:heslo@localhost:3306/ser")
>
> modparam("fifo", "fifo_file", "/tmp/ser_fifo")
>
> # ------------------------- request routing logic -------------------
>
> # main routing logic
>
> route{
> # XML RPC
> if (method == "POST" || method == "GET") {
> create_via();
> dispatch_rpc();
> break;
> }
>
> # initial sanity checks -- messages with
> # max_forwards==0, or excessively long requests
> if (!mf_process_maxfwd_header("10")) {
> sl_send_reply("483","Too Many Hops");
> break;
> };
> if (msg:len>= max_len ) {
> sl_send_reply("513", "Message too big");
> break;
> };
>
> # we record-route all messages -- to make sure that
> # subsequent messages will go through our proxy; that's
> # particularly good if upstream and downstream entities
> # use different transport protocol
> if (!method=="REGISTER") record_route();
>
> # subsequent messages withing a dialog should take the
> # path determined by record-routing
> if (loose_route()) {
> # mark routing logic in request
> append_hf("P-hint: rr-enforced\r\n");
> route(1);
> break;
> };
>
> # if the request is for other domain use UsrLoc
> # (in case, it does not work, use the following command
> # with proper names and addresses in it)
> if (uri==myself) {
>
> if (!lookup_domain("To")) {
> xlog("L_ERR", "Unknown domain to: %tu from: %fu\n");
> route(1);
> break;
> }
>
> if (method=="SUBSCRIBE") {
> if (!t_newtran()) {
> sl_reply_error();
> break;
> };
>
> if (@to.tag=="") {
> # only for new subscriptions (with empty to tag)
>
> if (lookup_user("To")) {
> # existing user -> it is subscription to PA
> if (handle_subscription("registrar")) {
> if ((@msg.event=~"presence\.winfo")) {
> # new watcher info subscription
> # sends one watcher info NOTIFY message with all saved authorization requests
> xlog("L_ERR", "dumping stored winfo to %fu\n");
> dump_stored_winfo("registrar", "presence");
> }
> else {
> # new presence subscription
> if ((@msg.event=~"presence") && (%subscription_status=="pending")) {
> # if offline user and new pending subscription
> if (!target_online("registrar")) {
> #%subscription_status="waiting"; # store it as waiting subscription
> xlog("L_ERR", "storing 'pending' winfo to: %tu, from: %fu\n");
> store_winfo("registrar");
> }
> }
> }
> }
> break;
> }
>
> if ((@msg.supported=~"eventlist")) {
> # such user doesn't exist and Supported header field
> # -> probably RLS subscription
>
> if (lookup_domain("From")) {
> if (lookup_user("From")) {
> if (is_simple_rls_target("$uid-list")) {
> # log(1, "it is simple subscription!\n");
> # takes From UID and makes XCAP query for user's
> # list named "default"
> if (!query_resource_list("default")) {
> t_reply("404", "No such user list");
> break;
> }
> }
> }
> }
>
> if (!have_flat_list()) {
> # query_resource_list failed or was not called
> # do standard RLS query acording to To/AOR
> if (!query_rls_services()) {
> log(1, "XCAP query failed\n");
> t_reply("404", "No such list URI");
> break;
> }
> }
>
> # uncomment this if you want to authenticate first SUBSCRIBE request to resource list
> # if (!proxy_authenticate("test-domain.com", "credentials")) {
> # proxy_challenge( "test-domain.com", "0");
> # break;
> # };
>
> handle_rls_subscription("1");
> }
> else {
> # not resource list subscription -> invalid user
> xlog("L_ERR", "subscription to invalid user %tu\n");
> t_reply("404", "User not found");
> }
>
> break;
> }
> else {
> # renewal subscriptions - try to handle it as RLS and if failed, handle it as PA subscription
> # FIXME: better will be test like existing_rls_subscription()
> # and existing_subscription("registrar")
> if (!handle_rls_subscription("0")) {
> handle_subscription("registrar");
> }
> break;
> }
> };
>
> # get user (common for all other messages than SUBSCRIBE)
> if (!lookup_user("To")) {
> # log(1, "Unknown user - message should be forwarded?");
> # # break;
> append_hf("P-hint: unknown user\r\n");
> route(1);
> break;
> }
>
> if (method=="PUBLISH") {
> if (!t_newtran()) {
> # log(1, "newtran error\n");
> sl_reply_error();
> break;
> };
> handle_publish("registrar");
>
> # deliver messages to online user
> # TODO: only if user goes from offline to online?
> if (target_online("registrar")) {
> # log(1, "Dumping stored messages\n");
> # dump stored messages - route it through myself (otherwise routed via DNS!)
> if (m_dump("sip:127.0.0.1")) {
> xlog("L_ERR", "MSILO: offline messages for %fu dumped\n");
> }
> }
>
> break;
> };
>
> if (method=="NOTIFY") {
> if (!t_newtran()) {
> log(1, "newtran error\n");
> sl_reply_error();
> break;
> };
> # handle notification sent in internal subscriptions (presence_b2b)
> if (!handle_notify()) {
> t_reply("481", "Unable to handle notification");
> }
> break;
> };
>
> if (method=="MESSAGE") {
>
> if (authorize_message("http://localhost/xcap")) {
>
> # use usrloc for delivery
> if (lookup("location")) {
>
> log(1, "Delivering MESSAGE using usrloc\n");
> t_on_failure("1");
> if (!t_relay()) {
> sl_reply_error();
> }
>
> break;
> }
> else {
> # store messages for offline user
> xlog("L_ERR", "MSILO: storing MESSAGE for %tu\n");
>
> if (!t_newtran()) {
> log(1, "newtran error\n");
> sl_reply_error();
> break;
> };
>
> # store only text messages NOT isComposing... !
> if (search("^(Content-Type|c):.*application/im-iscomposing\+xml.*")) {
> log(1, "it is only isComposing message - ignored\n");
> t_reply("202", "Ignored");
> break;
> }
>
> if (m_store("0", "sip:127.0.0.1")) {
> # log(1, "MSILO: offline message stored\n");
> if (!t_reply("202", "Accepted")) {
> sl_reply_error();
> };
> } else {
> log(1, "MSILO: error storing offline message\n");
> if (!t_reply("503", "Service Unavailable")) {
> sl_reply_error();
> };
> };
> break;
> }
> break;
> }
> else {
> # log(1, "unauthorized message\n");
> sl_reply("403", "Forbidden");
> }
> break;
> }
>
> if (method=="REGISTER") {
> # uncomment this if you want to authenticate REGISTER request
> # if (!www_authenticate("", "credentials")) {
> # www_challenge("", "0");
> # break;
> # };
>
> save("location");
>
> # dump stored messages - route it through myself (otherwise routed via DNS!)
> if (m_dump("sip:127.0.0.1")) {
> xlog("L_ERR", "MSILO: offline messages for %fu dumped\n");
> }
> break;
> };
>
> # native SIP destinations are handled using our USRLOC DB
> if (!lookup("location")) {
> sl_send_reply("404", "Not Found");
> break;
> };
> };
> # append_hf("P-hint: usrloc applied\r\n");
> route(1);
> }
>
> route[1]
> {
> # send it out now; use stateful forwarding as it works reliably
> # even for UDP2TCP
> if (!t_relay()) {
> sl_reply_error();
> };
> }
>
>
> failure_route[1] {
> # forwarding failed -- check if the request was a MESSAGE
> if (!method=="MESSAGE") { break; };
> log(1, "MSILO: MESSAGE forward failed - storing it\n");
>
> # we have changed the R-URI with the contact address, ignore it now
> if (m_store("0", "")) {
> t_reply("202", "Accepted");
> } else {
> log(1, "MSILO: offline message NOT stored\n");
> t_reply("503", "Service Unavailable");
> };
> }
>
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