| 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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ipcpd: fixes in ipcp-data
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deletion of flows was not implemented, renamed to ipcp_data_del_flow
removal of stub for has_flow_s (not needed)
made find_flow public, renamed to ipcp_data_find_flow
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lib: moved flow header and source to ipcpd
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ipcpd: initial IPC processes
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added missing NULL checks
common argument check function for ipcps
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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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build: fixes wrong target for install_release.sh
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lib: fixed missing check in instance_name_create
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Dif config now correctly passed to the IPCP
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This changes the name of the IPCP types after discussions with
Dimitri.
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This updates irm bootstrap so that the parameters from the struct
dif_config can be correctly filled in from the command line.
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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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lib: include stdlib.h, not malloc.h
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Strdup changes
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Removes name_is_equal. Just using instance_name_cmp is encouraged. It
also removes a wrong initialization in the irm tool.
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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 moves strdup to utils to make it globally available.
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build: Cleanup of tests build
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lib: Implementation of flow related ops
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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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lib: Add flow related ops to ipcp.h
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This adds the operations related to flows to ipcp.h. Previously it
only contained operations on the IPCP level.
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lib, irmd: Update communication with IRMd
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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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API for handling flows
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lib: renamed rina_name_t to instance_name_t
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fixes wrong check, checks now use lazy evaluation
changed the order of instance_name_cpy to (dst, src)
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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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FLOW_O_INVALID now defined in terms of conflicting options
bugfix in setopts
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forgotten return statement
forgotten NULL check
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Replace custom ser/des with GPB
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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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Removes rina_name_t from that API. Passing ap_name and api_id as
params instead. The IRM tool has been updated accordingly. Some errors
in the build related to protobuf-c have also been resolved.
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This adds a cmake file so that the build can ask to generate
protobuf-c files from .proto files. The messages between the IRM and
the library are compiled into the library.
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moved the flow definition to the library and made it public.
thread-safety implemented without compiler checks.
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