Dears, I have wonder who knows about this issues.
As you know, ConnMan listens DNS port of both tcp and udp requests. If some malicious (unconscious or by mistake) process sends tcp packet to ConnMan dnsproxy with just SYN and without detailed request body, ConnMan accepts and tries to recv its request to be parsed. Here ConnMan is frozen because of its dns requests, and doesn't make any response of even DBus request/response and any other DNS requests. Followings are strace logs: (ConnMan stops to recv inode 12.) > Process 3996 attached - interrupt to quit > recv(12, And inode 12 indicates local interface and dns service port. > tcp 0 0 ::ffff:127.0.0.1:53 ::ffff:127.0.0.1:54663 ESTABLISHED 0 18129 3996/connmand With this logs, ConnMan don's response against any other interactions. Cheers, Danny JS Seo. _______________________________________________ connman mailing list [email protected] http://lists.connman.net/listinfo/connman
