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path: root/src/ipcpd/shim-eth-llc/main.c
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* ipcpd: Refactor ipcpi structdimitri staessens2017-02-071-26/+34
| | | | | | | | | The ipcp-ops header was removed and merged into ipcp.h. The common components dif_name and ipcp_type have been moved to the main ipcp struct. After this move, ipcp_data only contained shim information, so it was renamed to shim_data. The ipcp_init() function checks the type and will only include the shim_data if the type is not an IPCP_NORMAL. All ipcps have been adapted to this change in API.
* ipcpd: Remove strdup() from ipcp main loopdimitri staessens2017-02-031-1/+8
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* ipcpd: Don't strdup() the dif_name in main loopdimitri staessens2017-01-291-3/+0
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* ipcpd: Let IPCPs bind a nameSander Vrijders2017-01-091-8/+2
| | | | | | | This allows IPCPs to bind a name, so that they can announce their name to neighbors which can then allocate a flow to them. Registering of the name happens by an administrator. It also moves the irmd_api to common ground, since it is used by all IPCPs.
* ipcpd: Add boot and shutdown operationsdimitri staessens2017-01-041-5/+13
| | | | | | | These operations separe the starting and joining of the main ipcp threads into ipcp_boot() and ipcp_shutdown() operations. This allows the proper cleanup of user data and user threads after the IPCP is requested to shut down.
* lib, ipcpd, irmd: Proof of concept QoSdimitri staessens2017-01-031-8/+16
| | | | | | | | | | Now correctly relays the qoscube end-to-end in the stack. A simple function specifying the cube in the spec is used for initial testing. The translation is now done in dev.c, but it could be moved elsewhere when qos cabability matures and the need arises.
* ouroboros: Correct license statementsdimitri staessens2016-12-241-3/+2
| | | | | This corrects the license statements on all files. Installed headers are LGPLv2.1, the rest of the code is GPLv2.
* ipcpd, lib, irmd: Update to use qoscube_tdimitri staessens2016-12-241-4/+4
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* ipcpd: Change IPCP_RUNNING to IPCP_OPERATIONALSander Vrijders2016-12-061-5/+5
| | | | Changes a state of the IPCP to a more correct terminology.
* ipcpd: Split IPCP state PENDING_ENROLSander Vrijders2016-11-301-5/+5
| | | | | | | | This will split the IPCP state PENDING_ENROL into IPCP_CONFIG and IPCP_BOOTING. IPCP_CONFIG is concerned only with configuring the IPCP with the bare essence. When in IPCP_BOOTING, the IPCP will complete its configuration by starting its policies, and thus making the IPCP completely functioning.
* ipcpd: Fix SDU size check in LLC shimdimitri staessens2016-11-181-1/+1
| | | | Total SDU size (including LLC header) cannot exceed 1500 bytes.
* lib, ipcpd: Improve flow allocationdimitri staessens2016-10-311-9/+21
| | | | | | | All calls for opening rbuffs are now concentrated on the dev side. This allows some simplifications in the np1 calls. The ipcp_fini call will not destroy the mutex associated with the state, since the final state needs to be checked before shutting down an IPCP.
* ipcpd: Remove unnecessary include of fcntldimitri staessens2016-10-311-1/+0
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* ipcpd: Clean shutdown when bootstrap failsdimitri staessens2016-10-311-10/+14
| | | | | Fixes a double free (conf->dif_name) and the handling of non-created threads when the bootstrap of an IPCP fails
* lib, ipcpd: Further stabilization of flowsdimitri staessens2016-10-261-50/+4
| | | | | | | | | | | 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-directory (pull request #280)dimitri staessens2016-10-261-13/+101
|\ | | | | | | lib, irmd, ipcpd: Add name querying to IPCPs
| * lib, irmd, ipcpd: Add name querying to IPCPsSander Vrijders2016-10-261-13/+101
| | | | | | | | | | | | | | | | | | 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.
* | ipcpd: Fix memory leaksdimitri staessens2016-10-251-14/+19
|/ | | | | Fixes memory leaks associated with the dif_name (which doesn't need to be maintained in shim DIFs) and the fqueue for the N + 1 flows.
* ipcpd: Fix log message and lockdimitri staessens2016-10-231-3/+2
| | | | | Remote requests for a flow that's locally deallocated should not generate an error. Sending messages should not be under lock.
* dev, ipcp: Fix setting default flow optionsdimitri staessens2016-10-231-9/+2
| | | | | The default flow options were not set when a flow allocation request arrives remotely. This went unnoticed due to a previous bug.
* build: Compile with strict conversiondimitri staessens2016-10-221-15/+21
| | | | | This has the code checked with -Wcast-qual and -Wconversion flags. These flags were removed because SWIG generated code fails.
* build: Comply with -Wextra compiler flagdimitri staessens2016-10-211-4/+10
| | | | | This reduces the risk for some bugs, for instance due to signed/unsigned mismatches and unused variables.
* lib: Demultiplex the fast pathdimitri staessens2016-10-211-35/+71
| | | | | | | | 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: Fix flow deallocation logicdimitri staessens2016-10-131-0/+2
| | | | | Both the N and N-1 entity must now call flow_dealloc for the port_id to be released.
* lib: Add non-copy reading from fd for IPCPsdimitri staessens2016-10-071-1/+1
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* ipcpd: Filter traffic on shim-eth-llcdimitri staessens2016-10-061-6/+28
| | | | Now correctly handles and drops non-ouroboros traffic.
* ipcpd: shim-eth-llc: Use correct SAP to lookup in the tableSander Vrijders2016-10-051-3/+5
| | | | | Upon deallocation, the remote's SAP was being used to lookup the fd instead of our own SAP. This resulted in strange behaviour.
* lib, ipcpd: Fix bad lockingSander Vrijders2016-10-051-5/+2
| | | | | | Some locks were taken at an inappropriate time, causing the shim-eth-llc to block indefinitely upon shutdown and causing flow allocation to halt since a response could never be given.
* lib, ipcp: Revise fast path and flow interfacesdimitri staessens2016-10-041-645/+333
| | | | | | | | | | | | 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
* ipcpd: Add missing include for FreeBSDdimitri staessens2016-09-071-0/+1
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* Merged in dstaesse/ouroboros/be-split-fp (pull request #238)Sander Vrijders2016-09-021-3/+3
|\ | | | | | | lib: Add northbound ringbuffers
| * lib: Add northbound ringbuffersdimitri staessens2016-09-021-3/+3
| | | | | | | | Fast path is split in north and southbound paths.
* | lib: ipcp: Decouple flow_deallocdimitri staessens2016-09-021-1/+1
|/ | | | Sending a dealloc to the irmd moved to its own call.
* lib: Refactor shm_du_map to shm_rdrbuffdimitri staessens2016-08-291-30/+33
| | | | | | | | | | 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: Report pid on shutdowndimitri staessens2016-08-261-2/+2
| | | | IPCPs will report their pid on shutdown for faster debugging.
* ipcpd: Revised lockingdimitri staessens2016-08-241-88/+55
| | | | | | 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.
* ipcpd: Add condition variable to IPCP stateSander Vrijders2016-08-111-50/+50
| | | | | | | 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.
* ipcpd: Put correct max SDU length in shim-eth-llcSander Vrijders2016-08-111-22/+7
| | | | | Now the correct max length of an SDU is checked upon writing a frame, as well as on receiving it.
* ipcpd: Add MSG_DONTWAIT flag to shim-eth-llcSander Vrijders2016-08-101-1/+1
| | | | | | This adds the MSG_DONTWAIT flag to the send function of the shim-eth-llc, when using PF_PACKET. Previously the send would return only after the frame was sent, resulting in poor performance.
* ipcp, irmd, lib: Notify IRMd upon IPCP initializationSander Vrijders2016-08-101-0/+6
| | | | | | 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.
* ipcpd: Fix locking of shim-eth-llcSander Vrijders2016-08-091-9/+2
| | | | | | This changes the amount of time the shim-eth-llc will hold the IPCP state lock when sending and receiving frames. Before it was holding the lock for too long.
* ipcpd: normal: Allow exchange of static DIF informationSander Vrijders2016-08-081-0/+1
| | | | | | 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.
* ipcpd: Fix memleakdimitri staessens2016-08-051-0/+2
| | | | The entry from the ringbuffer was never freed, causing memleak per SDU.
* ipcpd: Fix memory leaksdimitri staessens2016-08-041-1/+1
| | | | ipcp-data was not correctly destroyed.
* lib: Revise blocking I/Odimitri staessens2016-08-031-9/+9
| | | | | | | | | 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.
* shim-eth-llc: Fix for bad driversdimitri staessens2016-08-011-75/+79
| | | | | | | | It seems like drivers are setting the Ethernet length field wrong when sending an LLC message. The LLC shim now writes the payload length in the frame to circumvent the wrong information from the driver. Also fixes deallocation.
* lib: Portability to FreeBSDdimitri staessens2016-07-291-6/+73
| | | | | | | | | | 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.
* ipcpd: shim-eth-llc: Use correct frame lengthSander Vrijders2016-07-281-1/+15
| | | | | | | | Upon receipt of a frame, the minimum of the length reported in the frame and the frame length reported by kernel is taken. Some device drivers change the length in the frame. Some others add padding, making the length reported by the kernel too high. This is a lousy workaround to make it work on as many systems as possible.
* ipcpd: Deprecate ipcp_reg/ipcp_unregdimitri staessens2016-07-081-2/+0
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* ouroboros: Use ouroboros errno.hdimitri staessens2016-07-071-1/+1
| | | | | All includes of <errno.h> within ouroboros are replaced with the ouroboros errno.
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