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* irmd: flow allocation and fast pathdimitri staessens2016-05-079-216/+690
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit has a first implementation of flow allocation (the "slow path") and read/write (the "fast path") for ouroboros. It provides basic but unstable communications over the shared memory. It required a lot of changes all over the stack, and fixes a number of previously undetected issues. This PR still need heavy revision regarding data model, locking and cleanup. lib/dev: modifications to the API. It now uses an ap_init() call to set the AP name and sets the Instance ID to the pid of the process. It also binds the AP to the shared memory and creates tables for mappings in the fast path. A call to ap_fini() releases the resources. lib/shm_ap_rbuff: added ring buffer for data exchange between processes in the fast path. It passes an index in the shm_du_map. lib/shm_du_map: rewrote API to work with calls from dev.c. Garbage collector added. Tests updated to new API. ipcpd/ipcp-data: removed everything related to flows, as these are universal for all ap's and kept in ap_data (dev.c), or similar structs for shim ipcps. shim-udp: added flow allocator and read/write functions and shm elements. irmd: revised data model and structures necessary for flow allocation. tools: echo updated to new dev.h API. messaging system was updated to comply with new flow allocation messages. All exchanges use pid and port_id to bootstrap the fast path.
* lib: client-side flow allocationdimitri staessens2016-04-271-2/+4
| | | | | flow allocation now propagates on the client side up to the IPCP. added UNKNOWN_AP and UNKNOWN_AE definitions to dev.h
* lib: irm.h create_ipcp now returns pid_tdimitri staessens2016-04-261-2/+2
| | | | | ipcp_create now returns the pid of the created process to allow for more efficient scripting.
* lib: instance ID's are now set to the process PIDdimitri staessens2016-04-262-23/+8
| | | | | | | | All instance-id's in ouroboros will be set by the system to the pid of the process associated with this application process instance. This means that the user has no way to choose the instance id's. Function calls that assumed manually defined instance id's have been replaced throughout the system.
* irmd: reg/unreg whatevercast namesdimitri staessens2016-04-224-108/+138
| | | | | | | | | | | | Unregistering ap's now works. An AP now registers/unregisters its AP-I by sending its AP name and its pid to the IRMd. The IPCPs register whatevercast names. An AP name is currently mapped on a whatevercast name represented by the same string literal. The IRMd allows registration of only one AP-I per AP. A Name Space Management system is needed in the processing system so we can resolve this completely. Changing the stack to register whatevercast names required some changes all over the ipcpd implemented and in the library.
* shim-udp: flow allocation addeddimitri staessens2016-04-192-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* lib: moved flow header and source to ipcpddimitri staessens2016-04-192-88/+0
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* ipcpd: initial IPC processesdimitri staessens2016-04-188-104/+135
| | | | | | | | | | | 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.
* lib: fixed missing check in instance_name_createdimitri staessens2016-04-131-0/+2
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* Merged in sandervrijders/ouroboros/be (pull request #54)Dimitri Staessens2016-04-116-24/+82
|\ | | | | | | Dif config now correctly passed to the IPCP
| * lib: Change ipcp typesSander Vrijders2016-04-111-2/+2
| | | | | | | | | | This changes the name of the IPCP types after discussions with Dimitri.
| * lib, irmd, irm: Add dif_configSander Vrijders2016-04-086-24/+82
| | | | | | | | | | | | | | | | | | 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.
* | lib: include stdlib.h, not malloc.hdimitri staessens2016-04-025-5/+5
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* lib: Remove check for equal namesSander Vrijders2016-04-021-2/+0
| | | | | Removes name_is_equal. Just using instance_name_cmp is encouraged. It also removes a wrong initialization in the irm tool.
* lib: Move strdup to utilsSander Vrijders2016-04-022-19/+22
| | | | This moves strdup to utils to make it globally available.
* Merge branch 'be' of bitbucket.org:ouroboros-rina/ouroboros into be-builddimitri staessens2016-04-0111-972/+916
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| * lib: Implementation of flow related opsSander Vrijders2016-03-313-34/+333
| | | | | | | | | | | | 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).
| * Merged in sandervrijders/ouroboros/be-irmd (pull request #48)Dimitri Staessens2016-03-306-93/+144
| |\ | | | | | | | | | lib, irmd: Update communication with IRMd
| | * lib, irmd: Update communication with IRMdSander Vrijders2016-03-306-93/+144
| | | | | | | | | | | | | | | All messages sent to the IRMd now also get a reply back with the result of the operation.
| * | Merge branch 'be' of bitbucket.org:ouroboros-rina/ouroboros into be-flowdimitri staessens2016-03-304-126/+112
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| | * lib: fixes for instance_namedimitri staessens2016-03-302-37/+16
| | | | | | | | | | | | | | | fixes wrong check, checks now use lazy evaluation changed the order of instance_name_cpy to (dst, src)
| | * lib: renamed rina_name_t to instance_name_tdimitri staessens2016-03-304-122/+129
| | | | | | | | | | | | | | | all functions taking a char * ap_name and uint id now take either a instance_name_t or instance_name_t *
| * | lib: further fixes to flow APIdimitri staessens2016-03-301-1/+1
| | | | | | | | | | | | | | | FLOW_O_INVALID now defined in terms of conflicting options bugfix in setopts
| * | lib: bugfixes in flowdimitri staessens2016-03-301-2/+8
| | | | | | | | | | | | | | | forgotten return statement forgotten NULL check
| * | Merge branch 'be' of bitbucket.org:ouroboros-rina/ouroboros into HEADdimitri staessens2016-03-308-825/+349
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| | * Merge remote-tracking branch 'upstream/be' into be-gpbSander Vrijders2016-03-281-1/+3
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| | * | lib: Add ipcp_messages proto fileSander Vrijders2016-03-284-309/+96
| | | | | | | | | | | | | | | | | | | | This removes the custom ser/des methods for communicating with the IPCP daemon and also uses GPB instead.
| | * | lib, irmd: Use GPB for dev.c and IRMdSander Vrijders2016-03-282-469/+125
| | | | | | | | | | | | | | | | | | | | 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.
| | * | lib: Update irm.h APISander Vrijders2016-03-284-62/+98
| | | | | | | | | | | | | | | | | | | | | | | | 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.
| | * | build: Add protobuf-c commands for cmakeSander Vrijders2016-03-252-2/+45
| | | | | | | | | | | | | | | | | | | | | | | | 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.
| * | | lib: api for handling flowsdimitri staessens2016-03-302-0/+78
| | |/ | |/| | | | | | | | | | moved the flow definition to the library and made it public. thread-safety implemented without compiler checks.
* / | build: Cleanup of tests builddimitri staessens2016-04-011-8/+8
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* / build: lib/CMakelist now uses variablesdimitri staessens2016-03-261-1/+1
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* lib/ipcpd: fixed logging mistakedimitri staessens2016-03-252-0/+9
| | | | logs should be included in source, not in header
* lib: Shared Memorydimitri staessens2016-03-246-311/+130
| | | | | | | | Updated tests. Added code to drop a corner case (packet where the tail PCI would cross the edge of the ring buffer) because solving this very rare case is not worth the performance hit on the ringbuffer the extra code would incur. This means the ringbuffer might drop a very small percentage of packets.
* Merge branch 'be' of bitbucket.org:ouroboros-rina/ouroboros into be-shmdimitri staessens2016-03-246-168/+441
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| * lib: Adds IRMd messages for the dev.h API callsSander Vrijders2016-03-246-168/+441
| | | | | | | | | | | | This adds several messages for the dev.h API calls to communicate with the IRM daemon. The deserializing of these messages is still missing and the irmd hasn't been updated with them either.
* | Merge branch 'be' of bitbucket.org:ouroboros-rina/ouroboros into be-shmdimitri staessens2016-03-232-0/+105
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| * Merged in sandervrijders/ouroboros/be (pull request #38)Dimitri Staessens2016-03-222-0/+105
| |\ | | | | | | | | | tools: Simple echo application
| | * tools: Simple echo applicationSander Vrijders2016-03-212-0/+105
| | | | | | | | | | | | | | | | | | This adds a simple echo application written to show application how to use the API. It also updates the dev.h header file with the insights gained from performing this excercise.
* | | lib: optimization of ringbufferDimitri Staessens2016-03-201-15/+14
| | | | | | | | | | | | | | | | | | | | | | | | Got rid of divisions and modulo operations. Change in the meaning of a #define. SHM_DU_MAP_SIZE: is now an exponent of 2. Default is 10, allowing for 1024 blocks in the map.
* | | lib: updated shm_du_map to be a hybrid ring bufferDimitri Staessens2016-03-193-171/+87
| | | | | | | | | | | | | | | | | | Elements must be created/destroyed in order, but IPCPs can access PCI while the PDU is in the ring buffer. Test updated, no more waits are needed.
* | | lib: shared memory mapDimitri Staessens2016-03-195-1/+830
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The shared memory map will allow passing SDU's between IPCPs efficiently. It is a single block of managed memory. SDU's are stored in a shm_du_buff datastructure, which is a list of blocks inside the shared memory region. The mechanism for passing SDU's is not yet implemented and could be either within the region or using another local IPC mechanism. The following things are configured at compile time: SHM_FILE_NAME : the name. Default is "ouroboros_du_map". SHM_DU_BUFF_BLOCK_SIZE: size of a block inside the shared memory region. Default is the pagesize of the system. SHM_DU_MAP_SIZE : the approximate size in bytes of the shared memory map. The actual filesize may differ by a small margin. Default is 4MB.
* / lib: fixes to du_buffDimitri Staessens2016-03-172-11/+18
|/ | | | | fixes memleaks in du_buff and du_buff_test fixes bug in copy operation
* lib: Clean up memleaksSander Vrijders2016-03-171-4/+10
| | | | | Some allocations were not freed in case the creation of a new IPCP failed.
* lib: Add communication with IPCP daemonSander Vrijders2016-03-173-69/+387
| | | | | This adds the messages required for the IRMd to communicate with an IPC Process through the library.
* lib, irmd: Fix memleaksSander Vrijders2016-03-171-0/+1
| | | | | This removes some memleaks present in the sockets layer. It also fixes the bad initialization of the difs_size param in the irm_msg.
* lib: du_buff log an error when PCI > block sizeDimitri Staessens2016-03-151-1/+1
| | | | du_buff.c: LOG_WARN changed to LOG_ERR
* lib: indentation fixes in du_buffDimitri Staessens2016-03-151-6/+5
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* Merge branch 'be' of bitbucket.org:ouroboros-rina/ouroboros into b-du_buffDimitri Staessens2016-03-154-22/+128
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