Ladder Diagrams » History » Revision 2
Revision 1 (laforge, 03/03/2022 08:46 PM) → Revision 2/8 (laforge, 03/03/2022 08:49 PM)
h1. Ladder Diagrams
{{mscgen_link()
msc {
hscale=2;
client [label="Client"], server [label="Server (main port)"], worker [label="Server (worker port)"], hlr [label="HLR (database)"];
|||;
--- [label="Initial connection attempt from client to well-known server/port"];
|||;
client => server [label="HELLO_REQ (user_id)"];
server <=> hlr [label="Obtain auth vectors"];
client <= server [label="AUTH_REQ (rand, autn)"];
client => server [label="AUTH_RESP (res)"];
server box server [label="Verify res == xres?"];
server => worker [label="Create worker socket"];
server note server [label="Server accepts client + redirects to worker IP+Port"];
client <= server [label="HELLO_ACK (worker IP:Port, token)"];
...;
client => worker [label="HELLO_REQ (user_id, token)"];
worker box worker [label="Verify user_id + token"];
client <= worker [label="HELLO_ACK"];
...;
client <=> worker [label="TDMoIP"];
...;
--- [label="At any later point in time, whenever the server wants"];
worker <=> hlr [label="Obtain auth vectors"];
client <= worker [label="AUTH_REQ (rand, autn)"];
client => worker [label="AUTH_RESP (res)"];
worker box worker [label="Verify res == xres?"];
}
}}