| Commit message (Collapse) | Author | Age | Files | Lines |
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This adds the remote syncing of RIB objects. Subscribers are notified
upon receipt of new/deleted/updated RIB objects.
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This adds the ability to create/update/destroy RIB objects. Syncing
with other DIF members is not yet supported.
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This will simplify the CDAP API. Now the opcode has to be given when
sending a CDAP request. Before a separate operation was provided since
some of the function parameters are unused for certain commands.
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This adds a policy for obtaining a flat address, and thus also the
infrastructure for policies in the IPCP. The IPCP should check if the
address is available; this is currently not there yet.
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This fixes some bugs in connection establishment over the normal IPCP.
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lib: API for accepting flows with QoS
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This adds the ability to query IPCPs if a name can be reached through
them, e.g. if a name is available in a DIF. This means that in the
shim-udp a DNS query is performed, in the shim-eth-llc an ARP-like
query has been added, in the local a check is done to see if the name
is registered, and in the normal currently no application is reachable
through it.
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This has the code checked with -Wcast-qual and -Wconversion flags.
These flags were removed because SWIG generated code fails.
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This reduces the risk for some bugs, for instance due to
signed/unsigned mismatches and unused variables.
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lib: Demultiplex the fast path
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The fast path will now use an incoming ring buffer per flow per
process. This necessitated the development of a new method for the
asynchronous io call, which is now based on an event queue system for
scalability (fqueue). The ipcpd's and tools have been updated to this
API.
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There was no check to see if the normal IPCP was enrolled or not when
a flow allocation request is done.
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This commit will remove the RMT component from the normal IPCP, as
some of its functionality would else be duplicated in the FMGR. Now
all reading from flows, either N-1 or N+1 is done in the FMGR, then
either passed to the FRCT or a lookup is performed in the PFF (not
there yet) and the PDU is forwarded.
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This is the first version of the fast path bootstrap in the normal
IPCP. It sets up a connection with the other end, and creates the
appropriate data structures. N+1 and N-1 SDUs are read and written and
passed through the right components.
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IPCPs can now use ap_init() to initialize the memory. All flows are
accessed using flow descriptors, this greatly simplifies IPCP
development. Reverts the fast path to a single ap_rbuff per process.
Splits lib/ipcp into irmd/ipcp and lib/ipcp-dev. Adds a lib/shim-dev
holding tailored functions for shims. Moves the buffer_t to utils.h.
Fixes the shim-eth-llc length field. Removes the flow from shared.h.
Fixes #4
Fixes #5
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There was some crapped up indentation in the crc32 source file.
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ipcpd: normal: Add operations to get and set the PCI
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This adds the operations needed in the normal IPCP to get and set the
Protocol Control Information. It allows to allocate or release space
in the current DU. The struct pci can be serialized into newly
allocate space. Vice versa, a struct pci can be deserialized given a
DU. It allows for decreasing the TTL in the DU and for calculating the
CRC32. The TTL and CRC32 can now be selected when creating a new DIF.
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lib: Add northbound ringbuffers
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Fast path is split in north and southbound paths.
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Sending a dealloc to the irmd moved to its own call.
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Disables robust mutexes and clock attributes for condition variables
for compatibility with OSX (SUSv2). Implements clock_gettime and adds
some defines for OSX compatibility in time_utils.
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The shm_du_map is renamed to shm_rdrbuff to reflect the Random
Deletion Ringbuffer used in the implementation. The close_on_exit call
is removed and SDUs are cleaned up by the application in the ap_fini()
call. This required a non-blocking peek() operation in the shm_ap_rbuff.
Some initial implementation for future support of qos cubes has been
added to the shm_rdrbuff.
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IPCPs will report their pid on shutdown for faster debugging.
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Destruction of the object in the reply stage was unsafe.
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This removes the ret value which was not being set correctly.
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Fix locks
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ipcpd: Revised locking
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The state lock was reverted to an rwlock to avoid interference of
management functions with the fast path. IPCPs now close without
calling unsafe functions in the signal handler.
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This adds the initial framework for flow allocation between two N+1
endpoints. The FMGR will receive flow allocation requests and will
create a connection as a result, addressed to the right address, it
will also pass a flow allocation message to this address. Upon receipt
on the other side, the FMGR will be receive a flow allocation message
and a pointer to a new connection. The FMGR can then accept or destroy
the connection. This commit also introduces the RMT function, which is
needed by the FRCT to forward its SDUs on the right file descriptor.
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The complete data model inside the IRMd has been restructured. The
bind operation was revised to allow binding of AP and AP instances and
register those names with different DIFs (see "irm bind" for details).
Server applications require to call ap_init with a server name
argument, client application that do not the be reachable over any DIF
can call ap_init(NULL). Calling ap_init for a client with a specified
name will not have adverse consequences for the application, but will
consume unnecessary resources in the IRMd.
Application servers can now be started at any point after the IRMd has
been started. Starting servers, binding AP names and registering names in
DIFs can be performed in any order that does not defy temporal logic.
Supports naming instances by their pid. In case of IPCP Instances
created with the IRM tool, the name assigned during "irm ipcp create"
can be used.
All the changes required updates in the tools.
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This adds a condition variable with a timeout to the CDAP request so
that we can respond correctly to the answer from the remote. It also
adds a timeout to the condition variable waiting on completion of
enrollment. Furthermore, for every CDAP callback a new thread is now
spawned, to avoid deadlocking in case a callback is stuck.
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Calling api_bind during bootstrap caused the IRMd to lock up.
api_bind is now called after the normal completes bootstrapping.
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This adds a condition variable to the IPCP state, so that upon state
changes any listeners to state changes can be notified. It also
replaces the read/write lock with a mutex in order to be able to do
so.
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conf->dif_name was not copied from the dif_config gpb message.
Fixes some logs.
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This call will allow grouping AP instances of a certain AP together
which are configured identically. Adds the bind operation to dev and
updates the applications to make use of this call. Flow_alloc is now
only called with the pid and doesn't send the apn anymore.
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This will notify the IRMd when the IPCP is initialized and ready to
receive messages. Previously a bootstrap could fail since the IPCP was
not listening to the socket yet.
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This adds the functionality of exchanging the static DIF information
between 2 DIF members. After exchange the enrollment is stopped, and
the IPCP that initiated enrollment transitions to the enrolled state.
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This will add more functionality for enrolling two normal IPCPs with
each other. Some bugs were fixed in CDAP. Now on enrolling, an IPCP
will send a START message to the other IPCP. Next step is syncing the
RIBs.
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This provides the normal IPCP with bootstrapping and the initial steps
for enrollment. Next step is actually reacting to an enrollment
request and sending the data transfer constants.
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This adds the main loop to the normal IPCP, just like it is present in
the shim IPCPs. So in essence, the normal IPCP now reacts to all
operations from ipcp.h.
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This adds the intial implementation of establishing management N-1
flows between normal IPCPs. On calling fmgr_mgmt_flow, a management
flow will be setup to a certain destination IPCP. After flow
allocation, the fd is handed to the RIB manager. The flow manager also
listens for incoming flow requests. In case they are management flows,
they are handed to the RIB manager, otherwise to the FRCT.
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This adds the initial headers for the normal IPCP. The normal IPCP
consists of 3 main components:
* The flow manager, in charge of managing N and N-1 flows.
* The RIB manager, in charge of managing the RIB
* FRCT: The flow and retransmission control task
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All includes of <errno.h> within ouroboros are replaced with the
ouroboros errno.
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Fixes #3
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The installation prefix was taking a trailing backslash, while it is
common not to do so. Fixed it so that any trailing backslash is
removed by the compilation and installation scripts.
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