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* lib, ipcpd: Further stabilization of flowsdimitri staessens2016-10-262-1/+5
| | | | | | | | | | | The steps for flow deallocation have been further refined. An operation ipcp_flow_fini() which wait for all SDUs to be read from a flow has been added. The shim IPCPs and the local IPCP have been adapted to this new API. Deallocation messages have been removed from the shim IPCPs, since there is insufficient state synchronisation between them to make this work reliably.
* Merged in sandervrijders/ouroboros/be-ipcp-threads (pull request #283)dimitri staessens2016-10-261-0/+1
|\ | | | | | | ipcpd: Add threadpool for main loop
| * ipcpd: Add threadpool for main loopSander Vrijders2016-10-261-0/+1
| | | | | | | | | | | | | | This adds a threadpool for the main loop of the IPCPs. Before there was a single thread handling each request, which could result in starvation since performing name queries at the same time as enrolling a normal IPCP was impossible.
* | lib: API for accepting flows with QoSdimitri staessens2016-10-251-2/+3
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* lib: Stabilise flow allocationdimitri staessens2016-10-231-2/+0
| | | | | | | Deallocation was reverted to a synchronoous operation between the AP, IRMd and IPCP in order to avoid inconsistent states of the port_id. Fixes some memory leaks, particularly the shm_flow_set is now closed upon deallocation.
* build: Compile with strict conversiondimitri staessens2016-10-229-24/+29
| | | | | This has the code checked with -Wcast-qual and -Wconversion flags. These flags were removed because SWIG generated code fails.
* lib: Move rbuff creation/destruction to IRMddimitri staessens2016-10-211-1/+1
| | | | | This stabilises flow allocation now that the rbuffs are created upon flow allocation. Only the IRMd can sync this process sufficiently.
* lib: Demultiplex the fast pathdimitri staessens2016-10-219-94/+144
| | | | | | | | 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.
* lib: Stabilize fast flow deallocation over local IPCPdimitri staessens2016-10-152-5/+4
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* lib: Track SDUs in the fast pathdimitri staessens2016-10-111-0/+6
| | | | | | This will allow to finalize deallocating flows until all SDUs have been processed. Read and write calls will now block when a flow was deallocated. Replaces NULL checks in the fast path with asserts.
* lib: Add a type for struct flow_setdimitri staessens2016-10-091-11/+13
| | | | | | The struct flow_set can now be accessed in applications as flow_set_t. Fixes some malformed lines and homogenizes output when receiving bad SDUs in the oping tool.
* lib: Add non-copy reading from fd for IPCPsdimitri staessens2016-10-071-2/+5
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* lib, dev: Add asynchronous deallocationdimitri staessens2016-10-071-0/+2
| | | | | Flow deallocation from the application will immediately return (void call). The IRMd will not send a reply message.
* lib: Fix shutdown with pending SDUsdimitri staessens2016-10-061-1/+1
| | | | | The SDU's were not correctly removed upon shutdown, peek should be pop.
* lib: np1_flow.h: Remove bad includesdimitri staessens2016-10-041-8/+2
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* lib, ipcp: Revise fast path and flow interfacesdimitri staessens2016-10-0413-161/+174
| | | | | | | | | | | | 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
* Merged in sandervrijders/ouroboros/be-shm-pci (pull request #247)dimitri staessens2016-09-073-78/+10
|\ | | | | | | ipcpd: normal: Add operations to get and set the PCI
| * ipcpd: normal: Add operations to get and set the PCISander Vrijders2016-09-073-78/+10
| | | | | | | | | | | | | | | | | | 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.
* | wrap: Add swig wrapper for select.hdimitri staessens2016-09-061-0/+2
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* | lib: dev: Provide a set of fds to flow_selectdimitri staessens2016-09-064-7/+70
| | | | | | | | | | | | | | The flow_select call now takes as a parameter a flow_set_t, which specifies a set of flow descriptors that will unblock the select call when an SDU for one of them arrives. The select call has been moved to its own header.
* | Merged in dstaesse/ouroboros/be-split-fp (pull request #238)Sander Vrijders2016-09-021-6/+24
|\ \ | |/ |/| | | lib: Add northbound ringbuffers
| * lib: Add northbound ringbuffersdimitri staessens2016-09-021-6/+24
| | | | | | | | Fast path is split in north and southbound paths.
* | Merged in dstaesse/ouroboros/be-ipcp-dev (pull request #237)Sander Vrijders2016-09-021-4/+1
|\ \ | |/ |/| | | lib: ipcp: Decouple flow_dealloc
| * lib: ipcp: Decouple flow_deallocdimitri staessens2016-09-021-4/+1
| | | | | | | | Sending a dealloc to the irmd moved to its own call.
* | Merged in sandervrijders/ouroboros/be-swig-fix (pull request #236)dimitri staessens2016-09-021-0/+3
|\ \ | | | | | | | | | build: Add correct include directory for swig
| * | build: Add correct include directory for swigSander Vrijders2016-09-011-0/+3
| |/ | | | | | | | | | | The correct include directory was not added to the CMakeLists in the wrap directory. Before it was working since the headers were already installed system-wide on my own system.
* / lib: Change rdrbuff API to use correct typesSander Vrijders2016-09-011-8/+8
|/ | | | | | The head and tail alloc and release operations were taking an int to identify the idx instead of a ssize_t. The size was a ssize_t instead of a size_t.
* lib, ipcp: Compile on Apple junkdimitri staessens2016-08-301-0/+22
| | | | | | 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.
* lib: Refactor shm_du_map to shm_rdrbuffdimitri staessens2016-08-295-78/+92
| | | | | | | | | | 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.
* ipcpd: Revised lockingdimitri staessens2016-08-241-0/+1
| | | | | | 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.
* irm: Deprecate BIND_AP_LOCdimitri staessens2016-08-231-1/+0
| | | | Location-dependent names should be managed by a higher-level NMS.
* irmd, lib: Rebuild the IRMd data modeldimitri staessens2016-08-214-14/+25
| | | | | | | | | | | | | | | | | | | | | | 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.
* ipcpd: normal: Handle enrollment repliesSander Vrijders2016-08-191-4/+8
| | | | | | | | 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.
* lib: Add wrappers for PythonSander Vrijders2016-08-163-0/+88
| | | | | | This adds SWIG to the build and wraps the Ouroboros library so that it can be called through Python scripts. If either SWIG or Python cannot be found, no bindings are generated.
* Merged in dstaesse/ouroboros/be-api-bind (pull request #203)Sander Vrijders2016-08-101-0/+3
|\ | | | | | | lib, irmd: Bind AP instances to AP_subsets
| * lib, irmd: Bind AP instances to AP_subsetsdimitri staessens2016-08-101-0/+3
| | | | | | | | | | | | | | 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.
* | lib, irmd, ipcp: Add socket timeoutSander Vrijders2016-08-102-0/+2
|/ | | | | | This will add a timeout to the socket so that a process won't be blocked by the actions of the process with which it is communicating over the socket.
* Merge branch 'be' of bitbucket.org:ouroboros-rina/ouroboros into be-bugfixingdimitri staessens2016-08-101-0/+3
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| * ipcp, irmd, lib: Notify IRMd upon IPCP initializationSander Vrijders2016-08-101-0/+3
| | | | | | | | | | | | 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.
* | irmd: Graceful shutdowndimitri staessens2016-08-101-0/+1
|/ | | | | | Threads from the threadpool will now check the state of the IRMd and exit gracefully without a need to cancel them. This avoids the unsafe call of pthread_cancel in the signal handler.
* lib: Various fixesdimitri staessens2016-08-091-1/+0
| | | | | Fix missing set of api upon flow_alloc. Various locking fixes.
* ipcpd: normal: Allow exchange of static DIF informationSander Vrijders2016-08-082-11/+18
| | | | | | 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.
* lib, tools: Add POSIX version to source filesSander Vrijders2016-08-082-1/+2
| | | | | Sometimes the POSIX version was not set in source files. This caused the compiler to not find the timespec struct, since we are using C89.
* lib: Revise blocking I/Odimitri staessens2016-08-033-2/+10
| | | | | | | | | Blocking I/O now uses condition variables in the shared memory instead of busy waiting. Timeouts can be specified. This requires the size of the rbuffs and du_map to be the same, to guarantee that when the shm_du_map is not full, the ap_rbuffs can't be full either. Added the timeout option to the flow for future use.
* lib: dev: Add select-like calldimitri staessens2016-08-033-7/+11
| | | | | | | This adds a flow_select() call that will sleep until an SDU can be read on a flow. It returns the file descriptor for which an SDU is ready. It takes as optional argument a timespec struct to specify a timeout.
* Merged in sandervrijders/ouroboros/be-enrolment (pull request #182)dimitri staessens2016-08-012-2/+1
|\ | | | | | | Be enrolment
| * Merge remote-tracking branch 'upstream/be' into be-enrolmentSander Vrijders2016-07-271-1/+2
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| * | ipcpd: normal: Provide initial steps for enrollmentSander Vrijders2016-07-272-2/+1
| | | | | | | | | | | | | | | | | | 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.
* | | lib: Portability to FreeBSDdimitri staessens2016-07-291-3/+7
| |/ |/| | | | | | | | | | | | | | | | | Various portability fixes for FreeBSD. POSIX requires shm file names to start with a "/" to be portable. lseek(2) can be undefined on POSIX shm, replaced with ftruncate(2). IRMd check on existing lockfile more portable. FreeBSD 11.0 is preferred as it natively supports robust mutexes. Full working LLC implementation pending.
* | irmd: Revised flow allocationdimitri staessens2016-07-271-1/+2
|/ | | | | | | | | Flow allocation requests and registered api states revised so all states are tracked with a condition variable. This is a more reliable approach and improves stability of flow allocation. Some other refactoring was also done, such as renaming port_map_entry to irm_flow and hiding some internal structures of the registry.
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