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* include: Add a flow_join operation for broadcastDimitri Staessens2018-12-271-0/+1
| | | | | | | | | | | | This adds a new flow_join operaiton for broadcast, which is a much safer solution than overloading destination name semantics. The internal API now also has a different IPCP_FLOW_JOIN operation. The IRMd doesn't need to query broadcasts IPCPs for the name, it can just check if an IPCP with the layer name exists. The broadcast IPCP doesn't need to implement the query proxy call anymore. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
* include: Remove _DEFAULT_SOURCE in endian.hDimitri Staessens2018-09-271-0/+4
| | | | | | | | This removes the _DEFAULT_SOURCE definition in the endian header as it should not be there. This avoids double and conflicting definitions. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
* lib: Use IPCP name as RIB directoryDimitri Staessens2018-05-151-1/+1
| | | | | | | | This will change the FUSE mountpount to the name of the IPCP instead of a generic name based on its pid. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
* ipcpd: Create notifier before connmgrDimitri Staessens2018-04-261-9/+9
| | | | | | | | The connmgr requires the notifier, but the notifier was created after and destroyed before the connmgr. This is now fixed. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
* ipcpd: Revise Data Transfer component0.10.0Dimitri Staessens2018-02-131-16/+16
| | | | | | | | | | | This makes the TTL non-optional and allows the maximum (initial) value of the TTL to be specified at bootstrap (the default is set to 60). The fd in the DT PCI is now called EID (Endpoint ID). The names "dif" and "ae" have been replaced by "layer" and "component" respectively in all sources. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
* include, src: Update copyright to 2018Dimitri Staessens2018-01-091-1/+1
| | | | | | | Happy New Year, Ouroboros. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
* ipcpd: Use the term "layer" and deprecate "shim"Dimitri Staessens2017-12-191-2/+2
| | | | | | | | | | | | | | This changes the terminology to use layer instead of DIF and deprecate the word "shim" for the IPCPs that attach to Ethernet LLC and UDP .The terminology has not yet been changed in the variable names etc. This reflects the design choices in Ouroboros to make IPCPs pure resource allocators instead of also providing an "IPC service". The Ouroboros IPCPs that attach to Ethernet and UDP implement the allocator and are thus not really shims. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
* ipcpd: Don't bind from the IPCPDimitri Staessens2017-11-291-10/+0
| | | | | | | | | | The binding of the normal IPCP to its name is moved from the source code to the irm tool introducing the "autobind" option for the bootstrap and enroll commands. With this option, the IPCP will be bound to the IPCP name and the DIF name automatically. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
* lib: Deprecate ouroboros_init and ourboros_finidimitri staessens2017-10-141-1/+1
| | | | | | | | | | | | | | This commit deprecates ouroboros_init and ouroboros_fini and adds them as a constructor or destructor, causing these function to be run automatically when a program that links to the library calls and exits main(). For this to fully work, the library had to be split so that we can avoid the irmd calling these functions (the IRMd has to create the shm structures on which these calls depend). The library is split in 3 parts: libouroboros-dev, libouroboros-irm and libouroboros-common. The latter is linked to the other two so that including libouroboros-dev or libouroboros-irm will also link libouroboros-common.
* ipcpd: normal: Make PFF policy-basedSander Vrijders2017-09-201-0/+1
| | | | | This turns the PDU Forwarding Function of the IPCP into a policy. For now only the simple PFF policy is available.
* ipcpd: Enroll DHT when creating dt connectiondimitri staessens2017-09-191-35/+6
| | | | | | | | | The DHT will now enroll or sync when a data transfer connection is added. This avoids the need to create a temporary data transfer connection during enrollment (and speeds it up considerably). The notifier system was modified to take an opaque pointer to the object that registers as a parameter.
* lib: Provide RIB API to export internals via fusedimitri staessens2017-09-181-6/+15
| | | | | | | This adds a virtual RIB that is accessible as a filesystem that is accessed through a fuse mountpoint (configurable , default is /tmp/ouroboros). Currently, each IPCP will export its link state database.
* ipcpd: Revise internals of normal IPCPdimitri staessens2017-09-121-30/+10
| | | | | | | | This removes the RIB as a datastructure and CDAP as the protocol between IPCPs. CDAP, the rib and related sources are deprecated. The link-state protocol policy is udpated to use its own protocol based on a simple broadcast strategy along a tree. The neighbors struct is deprecated and moved to the library as a generic notifier component.
* ipcpd: Fix double finalization after some failuresdimitri staessens2017-09-071-5/+4
| | | | | When enroll or bootstrap failed, finalize_components could be called twice, resulting in double frees or use-after-free.
* ipcpd: normal: Simplify enroll APISander Vrijders2017-09-011-2/+2
| | | | | | | This will remove the dst parameter from enroll_boot, since it was only being used in logging. It also turns some other debug logs into info logs, and makes the component names as they are used in logs all lowercase.
* ipcpd: Fix thread leaks in normal IPCPdimitri staessens2017-08-291-0/+2
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* ipcpd: Address comments on 176698edimitri staessens2017-08-281-1/+1
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* tools: Add tool to connect IPCP componentsdimitri staessens2017-08-281-1/+4
| | | | | | | | | | | | This enables user-written tools to instruct IPCPs to establish and tear down connections (a.k.a. adjacencies) between its internal components (Management and Data Transfer). For more info, do "irm ipcp connect" or "irm ipcp disconnect" on the command line. This commit exposes a deletion bug in the RIB where FSO's fail to unpack/parse. This will be fixed when the RIB is deprecated.
* ipcpd: Deprecate gam as autonomous componentdimitri staessens2017-08-281-203/+182
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The graph adjacency manager has been deprecated in favor of providing an external interface into the connectivity manager so that adjacencies can be controlled from the command line, user scripts or user applications. The gam and its associated policies were removed from the normal IPCP and the IRM configuration tools. The "/members" part of the RIB was deprecated. Removal of the gam means that initial connectivity based on changes in the RIB can't be provided, so some changes were required throughout the normal IPCP. The enrollment procedure was revised to establish its own connectivity. First, it gets boot information from a peer by establishing a connection to the remote enrollment component and downloading the IPCP configuratoin. This is now done using its own protocol buffers message in anticipation of deprecation of the RIB and CDAP for communication within a DIF. After the boot information is downloaded, it establishes a data transfer flow for enrolling the directory (DHT). After the DHT has enrolled, it signals the peer to that enrollment is done, and the data transfer connection is torn down. Signaling connections is done via the nbs struct, which is now passed to the connmgr, which enables control of the connectivity graph from external sources.
* ipcpd: Improve locking in connmgrdimitri staessens2017-08-221-1/+1
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* build: Revise the build systemdimitri staessens2017-08-211-1/+4
| | | | | | | | | | This revises the build system to have configuration per system component. System settings can now be set using cmake. The standard compliance defines were removed from configuration header and are set in the sources where needed. Also some small code refactors, such as moving the data for shims out of the ipcp structure to the respective shims were performed.
* ipcpd: Refactor normal IPCP failure handlingdimitri staessens2017-08-161-35/+24
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* build: Replace fsf snail mail with contact URLdimitri staessens2017-08-131-1/+1
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* ipcpd: Add DHT as directory in normal IPCPdimitri staessens2017-07-181-12/+16
| | | | | | | | | This implements a Distributed Hash Table (DHT) based on the Kademlia protocol, with default parameters set as used in the BitTorrent Mainline DHT. This initial implementation is almost feature complete, except for some things to be done after a testing period: caching and stale peer bumping, and setting the expiration timeout via the IRM tool.
* ipcpd: Start DT component before flow allocatordimitri staessens2017-05-241-15/+15
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* ipcpd: normal: Make routing a policySander Vrijders2017-05-151-7/+10
| | | | | | This makes the routing component into a policy since different approaches may exist to do this, depending on how high the rank of the DIF is.
* ipcpd: Allow specifying fixed syntaxdimitri staessens2017-05-151-25/+9
| | | | | | This commits adds the functions and messages to specify a fixed protocol syntax during CACEP. It also revises the messages for specifying the DT protocol syntax from the irm tool.
* ipcpd: Remove FRCT from normal IPCPdimitri staessens2017-05-101-32/+23
| | | | | | | In order to ensure 100% reliable transfer, the protocol state machine that takes care of retransmission and SDU ordering has to be in the application. Flow allocation in the normal now uses fds. The PDU_type field was deprecated and AE's within the DIF can use reserved fds.
* Merged in sandervrijders/ouroboros/be-frct-api (pull request #497)Sander Vrijders2017-04-281-4/+0
|\ | | | | | | ipcpd: normal: Split connection establishment
| * ipcpd: normal: Split connection establishmentSander Vrijders2017-04-281-4/+0
| | | | | | | | | | | | Connection establishment was done at the same time as flow allocation. This splits it more cleanly, and allows to re-use the DT AE for other purposes.
* | ipcpd: Add capability reportingdimitri staessens2017-04-271-12/+17
|/ | | | | | | | The IPCP will now report the DIF name and the hash value to the IRMd as a dif_info struct. This can later be extended to add further capability reporting. Some bugfixes in normal. Fixes #24
* ipcpd: normal: Split flow manager into DT and FASander Vrijders2017-04-211-57/+65
| | | | | | This splits the flow manager into the Data Transfer AE, which is in charge of routing SDUs, and the Flow Allocator AE, which handles flow allocations.
* ipcpd: Allow specifying the hash algorithm to usedimitri staessens2017-04-161-12/+12
| | | | Currently CRC32, MD5, and SHA3 (224, 256, 384 and 512 bit) are supported.
* lib, ipcpd, irmd: Register hash instead of namedimitri staessens2017-04-131-93/+37
| | | | | | | | | All information passed over the IRMd/IPCP boundary for using IPC services (flow allocation, registration) is now hashed. This effectively fixes the shared namespace between DIFs and the IRMDs. This PR also fixes some API issues (adding const identifiers), shuffles the include headers a bit and some small bugs.
* ipcpd: normal: Call shm_pci_init on fmgr initSander Vrijders2017-03-281-1/+12
| | | | | | The shm PCI was never initialized during flow manager init. This commit will do that, and initialize the pdu length correctly as well, since it was not being written into the RIB, nor read in shm_pci_init.
* ipcpd: Initial synchronisation of the RIBdimitri staessens2017-03-241-2/+2
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* ipcpd: normal: Fix memory leaksSander Vrijders2017-03-221-0/+2
| | | | This fixes some memleaks as reported by valgrind.
* ipcpd: normal: Several bugfixesSander Vrijders2017-03-211-16/+15
| | | | These solve several bugfixes in the normal.
* ipcpd: normal: Split fmgr init into init and startSander Vrijders2017-03-211-10/+26
| | | | | | This split the initialization of the flow manager into an init part and a start part. This avoids the usage of data structures that have not been properly initialized yet.
* ipcpd: Fix cleanup of connmgrdimitri staessens2017-03-201-2/+2
| | | | Fixed trying to double lock and cleanup order in main.
* Change email addresses to ugent.beSander Vrijders2017-03-031-2/+2
| | | | | | | Our mailserver was migrated from intec.ugent.be to the central ugent.be emailserver. This PR updates the header files to reflect this change as well. Some header files were also homogenized if the parameters within the functions were badly aligned.
* ipcpd: normal: Refactor application entities and add neighbors structSander Vrijders2017-03-031-13/+41
| | | | | | | | | | | | | | | | | | | | This refactors the different Application Entities of the normal IPCP. They all listen to and use the connection manager to establish new application connections. This commit also adds a neighbors struct to the normal IPCP. It contains neighbor structs that contain application connection. Notifiers can be registered in case a neighbor changes (added, removed, QoS changed). The flow manager has an instance of this neighbors struct and listens to these events to update its flow set. The routing component also listens to these events so that it can update the FSDB if needed. The flow manager now also creates the PFF instances and the routing instances per QoS cube. The RIB manager also uses this an instance of the neighbors struct and listens to neighbor events as well.
* ipcpd: normal: Add connection managerSander Vrijders2017-03-021-67/+26
| | | | | | | This adds the connection manager which allows the different AEs of the normal IPCP to register with it. An AE can then use the connection manager to allocate a flow to a neighbor, or to wait for a new connection from a neighbor.
* lib: Split authentication from CACEPdimitri staessens2017-02-271-11/+0
| | | | | | | By removing authentication as part of CACEP, all policies disappear. CACEP becomes a policy-free connection establishment protocol between Application Entities. Authentication can later be added cleanly as a pure policy function when needed.
* lib: Remove application entity nameSander Vrijders2017-02-241-5/+4
| | | | | The AE name should not be passed over the layer boundaries. If an application has more than one AE it should exchange this in CACEP.
* Merge branch 'testing' into beSander Vrijders2017-02-231-4/+2
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| * irmd: Check IPCP type before bootstrapdimitri staessens2017-02-221-4/+2
| | | | | | | | | | This prevents assertion failures in the IPCP in some cases. IPCPs can now safely assert the type.
* | ipcpd: normal: Change address authority policySander Vrijders2017-02-211-11/+9
| | | | | | | | | | | | This changes the address authority to follow a similar approach to that of the other policies. No function pointers are passed to its user anymore.
* | lib: Revise CACEPdimitri staessens2017-02-201-1/+1
|/ | | | | | | | | Revises CACEP policies to stateless library calls. It provides two policies: an anonymous authentication policy that will generate random credentials for the peer, and a simple authentication policy that will return a name for the peer and an address. Changes the normal IPCP to use the updates API calls.
* ipcpd: Move RIB configuration to common headerdimitri staessens2017-02-171-5/+1
| | | | | Moves the definitions of paths in the RIB for the normal IPCP to a header ribconfig.h to avoid repetition.