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2016-08-17llmnrd: Allow to bind to a specific network interfaceTobias Klauser1-1/+11
Add a command line option -i/--interface which allows to bind the llmnrd sockets to a specific interface. If used, requests are only answered on the specified interface. Example: llmnrd -i eth0 Closes #9 Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-08-16llmnrd: Don't enumerate and store IPv6 addresses if IPv6 is disabledTobias Klauser1-5/+10
Currently IPv6 addresses are always enumerated via RTNL socket and then stored internally, even if llmnrd was started without the IPv6 command line option '-6'. Even though no queries on AF_INET6 sockets will be answered, this behavior might be confusing. Especially due to messages like: Added IPv6 address fe80::f0eb:aaff:feb3:ae58 on interface tap0 being logged. Explicitely disable IPv6 address enumeration on the RTNL socket to fix this behavior. Closes #8 Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-04-29iface: Close rtnl socket if address enumeration failsTobias Klauser1-2/+2
Fix a resource leak by closing the socket if iface_rtnl_enumerate() fails. Discovered by the Coverity scanner CID 99694. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-04-29iface: Fix memory leak in error caseTobias Klauser1-0/+3
If add from leaking in case the address was (unexpectedly) not found. This addresses CID 99695 discovered by the Coverity scanner. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-04-29iface: Use getnameinfo() to get address from struct sockaddr_storageTobias Klauser1-2/+5
Use getnameinfo() instead of inet_ntop() with weird (and incorrect) pointer arithmetics to get the numeric address from a struct sockaddr_storage. This addresses CID 99692 & 99696 discovered by the Coverity scanner. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-02-20iface: Proper types for arguments to iface_rtnl_enumerate()Tobias Klauser1-1/+1
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-02-19iface: Correctly compare addresses, otherwise they're never actually deletedTobias Klauser1-37/+69
This also fixes a double free() and other memory corruption errors on interface delete. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-02-19iface: Correct error messageTobias Klauser1-1/+1
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-02-18llmnrd: Join IP multicast group on each new interfaceTobias Klauser1-4/+14
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-02-17all: Remove unnecessary log messagesTobias Klauser1-2/+0
These could be used to DoS llmnrd, just silently discard invalid packets. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-02-16all: Remove trailing whitespacesTobias Klauser1-1/+1
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-02-06Initial import, still work in progressTobias Klauser1-0/+355
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