| Commit message (Collapse) | Author | Age | Files | Lines |
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This implements the API for flow allocation. The shims currently does
the following.
The shim IPCP binds to an interface (IP address) and listens for flow
allocation requests on UDP port 0x0D1F (3359), referenced as the
listen port (lp). It will treat any datagram received on lp as a flow
allocation request.
Upon receiving an allocation request IRM_MSG_CODE__IPCP_FLOW_ALLOC
from the IRMd, the shim IPCP will bind a UDP socket to a port (cp)
allocated by the host OS. From that port it will send a UDP packet
containing the destination ap_name to server_host:lp and wait for a
response.
Upon reception of a packet on server_host:lp, the shim_IPCP creates a
UDP socket for the flow with a port set by the host os (sp), binds to
it and echoes the received datagram back from server_host:sp to
client_host:cp. It will also notify the IRMd of an incoming flow
allocation request IRM_MSG_CODE__IPCP_FLOW_REQ_ARR, with as
src_ap_name ("John Day"). It will get the port_id as a return value
of that message and create a flow with status FLOW_PENDING with that
port_id. If the server responds negatively to the flow allocation
request (i.e. the shim IPCP on the server side receives a
IRM_MSG_CODE__IPCP_FLOW_ALLOC_RESPONSE with a response != 0, it will
delete the pending flow. If response == 0, it will set the status to
FLOW_ALLOCATED.
On the client machine the IPCP will learn sp upon reception of the
echoed datagram. It will then create a flow with the port_id it
received with the message from the IRMd and set it to ALLOCATED.
Pending implementation:
DNS support, this PR only supports local flows on the loopback adapter
127.0.0.1.
A thread to listen for the echoed message, to avoid the
entire IPCP to block when the echoed message is lost.
This PR compiles but is untested pending necessary implementations
elsewhere in the stack.
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Basic functions for implementation of IPC processes, and
implementation of core functions of the shim IPCP over UDP. Updates
to the build system to compile these IPC processes, as well as some
fixes in the irmd (rudimentary capturing exit signals) and some fixes
in the library, mainly relating to the messaging.
Basic implementation of creation / bootstrapping / deletion of the
shim UDP. Placeholders for other functions.
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This adds dif_config to the prototype, in which one is able to specify
the parameters a DIF should have. The bootstrap operation of an IPCP
takes this as parameter and is oblivious to whether it is a shim or a
normal IPCP. The dif_config struct is also correctly serialized and
deserialized and passed opaquely to the correct IPCP. This IPCP is in
charge of deserializing it correctly.
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Did a rename of the struct so that it can hold all data related to an
IPCP in the system. The DIF name an IPCP belongs to is set on
bootstrap and enrolment.
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This adds the messages that are sent to the IPCPs related to
flows. Some messages are also sent to the IRMd (e.g. when a new flow
arrives).
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All messages sent to the IRMd now also get a reply back with the
result of the operation.
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all functions taking a char * ap_name and uint id now take either a
instance_name_t or instance_name_t *
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This removes the custom ser/des methods for communicating with the
IPCP daemon and also uses GPB instead.
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IRMd and dev.c now also use GPB instead of our own ser/des. irm_msg
struct has been dropped as well as the methods associated with it.
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This adds several messages for the dev.h API calls to communicate with
the IRM daemon. The deserializing of these messages is still missing
and the irmd hasn't been updated with them either.
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This removes some memleaks present in the sockets layer. It also fixes
the bad initialization of the difs_size param in the irm_msg.
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This adds the functionality to create and destroy IPCPs. Upon creation
a new process is forked and execve'd. Upon destruction the IPCP is
destroyed by killing it with SIGTERM.
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A NULL pointer was being passed instead of the actual name of the
IPCP.
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This adds helper functions for RINA names, to aid with handling them.
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This replaces the stubs in the irmd and calls the actual IPCP
operations from the library. It also calls the DIF Allocator API in
one of the operations.
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common.h: dif_info renamed to dif_config
missing struct fixed
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Fixes a couple of memleaks found while executing with valgrind.
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This provides the other messages that are used to communicate between
the library and the IRM Daemon. The IRM tool just calls the library
right now to see if it works. A full fledged program will be provided
in a next commit.
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This addresses several comments Dimitri had on the sockets layer code.
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Provides the initial support to create IPCPs via a command-line
tool. It extends the socket layer with a message that is sent over a
socket to the irmd when the irm_create_ipcp library function is called
from a program.
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This provides the initial messages to be passed between the irmd and
libouroboros-irm.
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This renames the daemons to end with a 'd', as is common for UNIX
daemons. It also adds a tools folder, that will hold the tools of the
Ouroboros prototype. Examples are a simple echo application, an
application to instruct the IRM ...
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