~lukeshu/systemd - Unnamed repository; edit this file 'description' to name the repository.

Age	Commit message (Collapse)	Author
2013-12-22	libsystemd-dhcp: Fix checksum computation for buffer with odd size	Patrik Flykt
	Fix off-by-one error and notice that summing may need more than one round for the result to be in the lower 16 bits.
2013-12-22	libsystemd-dhcp: Fix receiving of other message when expecting Ack	Patrik Flykt
	When a DHCP Nak is received, return a DHCP_EVENT_NO_LEASE event. If some other DHCP message is received or an error happens when parsing options, return -ENOMSG in order to ignore the packet. There may be more than one server serving the same subnet, each server will send its Offer to the client.
2013-12-22	libsystemd-dhcp: Unref event source before closing socket	Patrik Flykt

2013-12-22	libsystemd-dhcp: Return proper error on OOM	Patrik Flykt

2013-12-22	libsystemd-dhcp: Use be32_t for IP addresses in network order.	Patrik Flykt

2013-12-17	dhcp: Properly handle unsuccessful cases for DHCP Ack	Patrik Flykt
	Ignore DHCP Ack packets if they are found to be erroneous or have an unexpected xid by setting the result to zero instead of propagating an error. Also remember to report a DHCP Nak and stop the DHCP client.
2013-12-12	dhcp: Add function to free DHCP client data	Patrik Flykt

2013-12-12	dhcp: Add notification callback	Patrik Flykt
	Define a notification callback and events for stopping and client lease expiry. Add functions to fetch IP parameters from a lease.
2013-12-12	dhcp: Compute expire, T1 and T2 timers	Patrik Flykt
	Compute the default T1 and T2 timer values if they were not set by the DHCP server. Verify that the values are reasonable.
2013-12-12	dhcp: Process DHCP Ack/Nak message	Patrik Flykt
	Process a DHCP Ack/Nak in much the same way as an DHCP Offer. Factor out header verification and process options sent. Add notification functionality with discrete values for the outcome of the DHCP Ack/ Nak processing.
2013-12-12	dhcp: Add maximum message size option	Patrik Flykt
	Add maximum message size option to keep some DHCP server implementations from sending too big messages. See ConnMan commit 0c5c862749c05193cf4c513628328c6db02b5222.
2013-12-12	dhcp: Send DHCP Request to acquire an IP address	Patrik Flykt
	Create and send a DHCP Request message reusing already existing parts of the code. This causes factoring out IP and UDP header creation and moving next timeout calculation to be done every time in the timer callback function independent of DHCP state. Also add an exponential part to the timer calculation, bail out if there are errors while resending the DHCP message for the sixth or more times.
2013-12-12	dhcp: Handle received DHCP Offer message	Patrik Flykt
	Create a function for handling the full IP, UDP and DHCP packet and tie it to the main loop. Verify IP and UDP headers and checksum. Creat a new lease structure with using the values supplied in the DHCP message. Free the lease structure when client is stopped. Split out socket handling into a creation and a sending part. As a result modify the test code.
2013-12-12	dhcp: Add timeout and main loop support	Patrik Flykt
	Require a main loop to be set when creating a DHCP client. Set up a timer to resend DHCP Discover messages and add a 0-2 second delay to the timeout value. Move to state Selecting after successful sending of a Discover message.
2013-12-12	dhcp: Add function to stop the DHCP client	Patrik Flykt
	The client is stopped and brought back to its initial state.
2013-12-12	dhcp: Support seconds elapsed since start of DHCP negotiation	Patrik Flykt
	It was noticed by Grant Erickson in ConnMan commit 95e15c09350acf58d4707056ae2614570883ef66 that: "Certain DHCP servers, such as that implemented in Mac OS X (< 10.7) for its "Internet Sharing" feature, refuse to issue a DHCP lease to clients that have not set a non-zero value in their DISCOVER or REQUEST packets."
2013-12-12	dhcp: Add DHCP discover sending	Patrik Flykt
	On starting the client, use the supplied interface mac address and create a transaction id. Puzzle together an IP/UDP/DHCP Discover message, compute checksums and send it out as a raw packet. Create an additional function that constructs default options common to all DHCP messages. Set the DHCP Client ID option as noticed by Grant Erickson in ConnMan commit b18d9798b3a0ae46ed87d6d2be8d5a474bf3ab1e: "Some Internet gateways and Wi-Fi access points are unhappy when the DHCPv4 client-id option (61) is missing and will refuse to issue a DHCP lease."
2013-12-12	dhcp: Add DHCP client initialization	Patrik Flykt
	Provide functionality for initializing a DHCP client struct, setting interface index, last used address and additional options to request. On initialization the most useful options are added by default.