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* Merged in dstaesse/ouroboros/be-pipe (pull request #132)Sander Vrijders2016-06-191-0/+1
|\ | | | | | | irmd: fix erroneus SIGPIPE log
| * irmd: fix erroneus SIGPIPE logdimitri staessens2016-06-191-0/+1
| | | | | | | | | | | | | | The IRMd would always report a SIGPIPE because of a missing break statement. Close #9
* | irmd: improved cleanup of flowsdimitri staessens2016-06-191-4/+14
|/ | | | | If the AP exits, the IRMd will deallocate the flow. If an IPCP dies, the IRMd will remove the stale resources.
* irmd: cleanup of flowsdimitri staessens2016-06-181-1/+11
| | | | | Port_id's on pending flows that time out are now released. Flows that are stale because one of the parent processes exited are removed.
* irmd, lib: use shm_du_map as lockfile.dimitri staessens2016-06-171-11/+19
| | | | | | | | | | | | Added the pid of the irmd to the shm_du_map. The IRMd will check for an existing shm_du_map. If there is an existing file, it will exit if the owner IRMd is running or remove it if the owner IRMd is not running. Also simplifies calculation of the shm_du_map pointers and corrects exiting calls for the IRMd. Fixes #8.
* irmd: clean up stale pending flowsdimitri staessens2016-06-161-6/+60
| | | | | | | Adds a thread that cleans up stale pending flows. Compile time option IRMD_FLOW_TIMEOUT allows setting the timeout period. Default timeout is 5 seconds. The thread wakes up 20 times per period to check the flows.
* Fixed comments on #122dimitri staessens2016-06-141-4/+3
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* irmd: cond_var to wait for ap to acceptdimitri staessens2016-06-141-4/+13
| | | | | A condition variable is now used to wait for an auto-executed AP to accept the requested flow.
* lib, irmd, tools, ipcpd: updates to dev API.dimitri staessens2016-06-131-116/+135
| | | | | | | | | | | | | | | The registration function has been moved to the irm tool, applications now need to be registered by an administrator. Currently only supports one instance per registered name, and an AP can be registered under only one name. The irmd can now start a registered server application on demand. For the full functionality of the tool, execute "irm register". AP name removed from flow allocation. Flow allocation does not send the source ap name as it is quite useless. The accept() call now only returns the AE name.
* irmd: Add wildcarding of DIF namesSander Vrijders2016-05-294-65/+149
| | | | | This adds wildcarding of DIF names so that application developers can for instance specify home.* to specify all home DIFs.
* irmd: use the shm_du_map as a uniqueness checkdimitri staessens2016-05-221-2/+7
| | | | | This makes sure only one shm_du_map is running in the system. Starting a second irmd would invalidate the shared memory map.
* irmd: Change read lock to write lockSander Vrijders2016-05-221-1/+1
| | | | | A read lock was taken instead of a write lock, which resulted in double frees.
* lib, ipcpd, irmd: fixes deallocation and fast pathdimitri staessens2016-05-221-4/+2
| | | | | | The fast path has been rewritten to have certainty to read the correct flow. Deallocation will not release port_id's or fd's until they are explicitly released locally.
* lib, irmd, ipcpd: Flow deallocation over shim UDPdimitri staessens2016-05-211-9/+28
| | | | | | The shim UDP now supports deallocating a flow end-to-end. Contains some stability fixes for flow allocation and some missing close() calls in lib/sockets.
* Implementation of a full flow allocator for the shim UDP.dimitri staessens2016-05-181-1/+0
| | | | | | | | | It uses UDP port 0x0D1F on all hosts to send and receive flow allocation messages. It supports communication between server and client AP over a single shim IPCP. Implementation of full flow deallocation is pending. Both the client and the server still have to call flow_dealloc();
* irmd: fixed bad locksdimitri staessens2016-05-171-4/+2
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* irmd: fixed unlock after freedimitri staessens2016-05-161-2/+4
| | | | unlock is now called before the object is destroyed.
* irmd: new locking implementationdimitri staessens2016-05-161-175/+221
| | | | | | | This locking should be more consistent, It now has three locks, one guarding flows and port_id's, one guarding the registered apps and ipcps, and one guarding the overall state of the irmd. There are two additional mutexes guarding the condition variables.
* lib: irmd: fixed flow deallocationdimitri staessens2016-05-151-0/+2
| | | | | Port_id's weren't correctly released. Also removes remaining debug logs from the library.
* lib, ipcpd, irmd: Add QoS cube definitionSander Vrijders2016-05-141-8/+5
| | | | | | | | | | This adds the QoS cube definition, which is an enum to select which QoS is needed in the IPCP. An application has to use the qos_spec in qos.h to define what it needs. The IRMd will map this unto a qos cube definition. Some headers are now also no longer installed on the system, since they are only to be used within the irmd and ipcps.
* irmd: fixed bad locking and added cleanupdimitri staessens2016-05-121-1/+6
| | | | flow_alloc_res had missing cleanup, added missing unlock.
* irmd: cleanupdimitri staessens2016-05-121-12/+115
| | | | improved cleanup when killing the IRMd.
* irmd: added dedicated locks for signalingdimitri staessens2016-05-101-9/+40
| | | | | it's more robust to use dedicated locks for pthread_cond_signal so no other threads can be waiting for the mutex.
* irmd: fixed potential data racesdimitri staessens2016-05-101-8/+10
| | | | | bmp_allocate should be called under lock. Helgrind does not give warnings anymore during flow allocation.
* IRMd: set number of thread back to 3 (minimum)dimitri staessens2016-05-101-1/+1
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* irmd: introduced lockingdimitri staessens2016-05-101-140/+282
| | | | | This commit adds locking to the IRMd with a single global lock. It also fixes some issues in cleaning up the daemon.
* irmd: use pthread_cond_waitdimitri staessens2016-05-091-23/+29
| | | | | | The initial implementation looped on a nanosleep to wait for an incoming flow allocation request. This implementation is now corrected with the necessary locks and the thread sleeps on a condition variable.
* lib: changed port_id to intdimitri staessens2016-05-081-15/+13
| | | | | returning -1 as uint32_t leads to bugs. also changed types in GPB to sint to use zigzag encoding.
* lib/irmd/ipcpd/tools: fixes comments on eb9f443dimitri staessens2016-05-081-7/+11
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* irmd: flow allocation and fast pathdimitri staessens2016-05-071-190/+570
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 staessens2016-04-271-7/+33
| | | | | 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 staessens2016-04-261-3/+3
| | | | | 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 staessens2016-04-261-65/+62
| | | | | | | | 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/shim-udp: formatting fixesdimitri staessens2016-04-251-5/+11
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* irmd: reg/unreg whatevercast namesdimitri staessens2016-04-221-30/+254
| | | | | | | | | | | | 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.
* ipcpd: fixes comments on 18c5da3dimitri staessens2016-04-211-1/+1
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* irmd: application registrationdimitri staessens2016-04-211-1/+53
| | | | | | Initial code for application registration. Specifying "*" will (for now) register with the first IPCP available in the system. Modified the echo server not to barf messages on failed accept()
* shim-udp: flow allocation addeddimitri staessens2016-04-191-8/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* ipcpd: initial IPC processesdimitri staessens2016-04-181-5/+44
| | | | | | | | | | | 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, irmd, irm: Add dif_configSander Vrijders2016-04-081-5/+6
| | | | | | | | | 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.
* irmd: Rename name_to_pid to ipcp_dataSander Vrijders2016-04-021-31/+75
| | | | | | Did a rename of the struct so that it can hold all data related to an IPCP in the system. The DIF name an IPCP belongs to is set on bootstrap and enrolment.
* lib: Implementation of flow related opsSander Vrijders2016-03-311-2/+34
| | | | | | 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).
* lib, irmd: Update communication with IRMdSander Vrijders2016-03-301-81/+230
| | | | | All messages sent to the IRMd now also get a reply back with the result of the operation.
* lib: renamed rina_name_t to instance_name_tdimitri staessens2016-03-301-48/+48
| | | | | all functions taking a char * ap_name and uint id now take either a instance_name_t or instance_name_t *
* lib: Add ipcp_messages proto fileSander Vrijders2016-03-281-1/+1
| | | | | 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 Vrijders2016-03-281-44/+28
| | | | | 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: Adds IRMd messages for the dev.h API callsSander Vrijders2016-03-241-3/+3
| | | | | | 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.
* lib, irmd: Fix memleaksSander Vrijders2016-03-171-1/+12
| | | | | This removes some memleaks present in the sockets layer. It also fixes the bad initialization of the difs_size param in the irm_msg.
* irmd, lib: Create and destroy IPC ProcessesSander Vrijders2016-03-151-11/+16
| | | | | | This adds the functionality to create and destroy IPCPs. Upon creation a new process is forked and execve'd. Upon destruction the IPCP is destroyed by killing it with SIGTERM.
* irmd: Remove wrong copySander Vrijders2016-03-111-2/+1
| | | | | A NULL pointer was being passed instead of the actual name of the IPCP.
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