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* lib, ipcpd, irmd: Fix several memleaksSander Vrijders2017-08-232-1/+5
| | | | | This fixes several memleaks as reported by valgrind. It also fixes some calls to close() with -1.
* ipcpd: Fix data race in connmgrdimitri staessens2017-08-221-0/+5
| | | | The removal of the mutex and signal in 198b709 was a mistake.
* ipcpd: Improve locking in connmgrdimitri staessens2017-08-223-66/+93
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* build: Revise the build systemdimitri staessens2017-08-2121-23/+60
| | | | | | | | | | 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: Fix missing clock_gettime in flow allocatordimitri staessens2017-08-161-0/+2
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* ipcpd: Refactor normal IPCP failure handlingdimitri staessens2017-08-161-35/+24
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* build: Replace fsf snail mail with contact URLdimitri staessens2017-08-1348-51/+48
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* Merged in dstaesse/ouroboros/be-tpm (pull request #550)dimitri staessens2017-08-131-7/+28
|\ | | | | | | lib: Fix instability in threadpool manager
| * ipcpd: Fix tracking of outstanding DHT requestsdimitri staessens2017-08-131-7/+28
| | | | | | | | | | | | The DHT failed when receiving multiple responses in a short timeframe. The lookup struct now keeps track of the number of outstanding requests.
* | build: Fix compilation on OS X Sierradimitri staessens2017-08-111-0/+4
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* lib, ipcpd, tools: Fix enum assignmentsSander Vrijders2017-08-101-1/+1
| | | | This fixes several assignments to the wrong enum type.
* build, lib, ipcpd, irmd: Add support for libgcryptdimitri staessens2017-08-091-1/+0
| | | | | | | | | | | | | | | | This adds support for libgcrypt. If at least version 1.7.0 of libgcrypt is present, it may be used for secure random number generation and is used for hashing in the irmd/ipcp. The hash definitions are moved to the internal hash.h header, and defined independently of the hashes that are defined as part of the directory policy for the normal IPCP. The translation is moved from the IRMd to ipcpd/ipcp.h. The bootstrap call from the IRMd expects the IPCP to return the correct hash algorithm with a dif_info struct, which is in line with the behavior of the enroll call. This also improves how some platform checks in the build system are handled.
* ipcpd: Fix assignment of fd's in flow allocatorDimitri Staessens2017-08-081-2/+4
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* ipcpd: Fix finding values in DHTDimitri Staessens2017-08-051-5/+18
| | | | | | | | | The DHT lookup would stop if a node returned no new useful information (i.e. the value for the key or unknown nodes closer to the key) without waiting for other pending requests that could still return useful information. Now it correctly tracks the number of outstanding requests or returns if it doesn't get a response for KAD_T_RESP seconds. This fixes multi-hop flow allocation over the normal.
* Merge remote-tracking branch 'origin/testing-deadlines' into beDimitri Staessens2017-08-031-4/+12
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| * ipcpd: Fix pthread_cond_timedwait deadlinesdimitri staessens2017-08-031-4/+12
| | | | | | | | | | | | This fixes pthread_condtimedwaits in the flow allocator of all IPCPs that had bad deadlines set (the interval instead of the actual absolute time).
* | ipcpd: Fix registration bug in DHTdimitri staessens2017-07-291-2/+2
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* | ipcpd: Add multithreading to schedulerdimitri staessens2017-07-291-25/+43
| | | | | | | | | | | | | | | | The scheduler in the normal IPCP is now multithreaded. While useful in itself for scalability, it currently solves thread starvation in case of executing post_sdu operations that may require a response. This could be further revised in the future to split the SDU handling threads from the component tasks.
* | ipcpd: Cleanup sdb after unpackeddimitri staessens2017-07-291-6/+3
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* | ipcpd: Harmonize logs in directorydimitri staessens2017-07-291-1/+5
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* | ipcpd: Some fixes in DHTdimitri staessens2017-07-291-13/+10
| | | | | | | | | | | | | | Fixes a memory leak when the DHT is destroyed during a send_msg. Fixes a deadlock when destroying the DHT with a pending lookup. Removes some debug logs that clutter output due to expected redundant FIND_VALUE responses.
* | ipcpd: Retry sending DHT response messagesdimitri staessens2017-07-241-4/+16
| | | | | | | | | | | | | | This will make the remote retry sending responses when the DT component can't send the message. This is most useful at enrollment, when the remote's routing table may need to wait a bit on the routing component for a path to the new member,
* | ipcpd: Fix DHT lookup processingdimitri staessens2017-07-201-20/+25
| | | | | | | | | | Not all returned contacts were processed when a FIND_NODE or FIND_VALUE message was returned.
* | ipcpd: Add DHT as directory in normal IPCPdimitri staessens2017-07-1815-160/+2742
|/ | | | | | | | | 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: Check connmgr acceptor thread at createdimitri staessens2017-07-121-1/+2
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* lib, ipcpd, irmd: Add full-fledged QoSSander Vrijders2017-06-214-9/+5
| | | | | | | This adds more Quality of Service support to Ouroboros. One part is the network specific characteristics such as bandwidth, delay, ... The other part is end-to-end QoS like reliability, window based flow control, ...
* ipcpd: Fix flow allocation over normaldimitri staessens2017-06-192-3/+1
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* ipcpd: Start DT component before flow allocatordimitri staessens2017-05-241-15/+15
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* ipcpd: Allow registering protocol machines with DTdimitri staessens2017-05-244-119/+176
| | | | | | Other protocol machines now have to register on top of the DT AE. This allows multiple instances of the same protocol machine and avoids preallocating fds for each protocol machine instance.
* ipcpd: normal: Make routing a policySander Vrijders2017-05-1514-337/+490
| | | | | | 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 staessens2017-05-154-75/+58
| | | | | | 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 staessens2017-05-1015-709/+91
| | | | | | | 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.
* ipcpd: Don't send deallocation messagesdimitri staessens2017-05-022-39/+0
| | | | | | | The flow resources are Delta-t protocol machines that will time out and free their resources without any required signaling. Flows can be cleaned locally when the application requests it and all FRCT instances have timed out and released their resources.
* ipcpd: Fix sending fa dealloc messagedimitri staessens2017-04-292-18/+31
| | | | | | | The frct instance was previously destroyed before sending the message, resulting in the destination address being 0 and the message getting dropped. Some fixes in the normal for deallocation, but will require further revision once all data transfer protocols are in place.
* ipcpd: Fix some bugs for the normal splitdimitri staessens2017-04-284-39/+46
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* Merged in sandervrijders/ouroboros/be-frct-api (pull request #497)Sander Vrijders2017-04-2815-680/+647
|\ | | | | | | ipcpd: normal: Split connection establishment
| * ipcpd: normal: Split connection establishmentSander Vrijders2017-04-2815-680/+647
| | | | | | | | | | | | 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: Fix start/stop order in dtdimitri staessens2017-04-261-9/+9
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* lib: Add call to reserve blocks in rdrbuffdimitri staessens2017-04-264-13/+13
| | | | | | | This adds a call ipcp_sdb_reserve to reserve memory in the rdrbuff without directly writing to a flow. The ipcp_flow_del function was renamed to ipcp_sdb_release. The functions operating on sdbs are moved to their own header.
* ipcpd: normal: Extract flow sets from componentsSander Vrijders2017-04-244-65/+58
| | | | | | The flow sets were still kept within the FA and DT components, when it makes more sense that they are kept within the SDU scheduler component.
* ipcpd: normal: Split flow manager into DT and FASander Vrijders2017-04-2111-884/+972
| | | | | | 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.
* Merged in dstaesse/ouroboros/be-complete (pull request #489)dimitri staessens2017-04-204-21/+78
|\ | | | | | | ipcpd: Build complete graph with gam
| * ipcpd: Build complete graph with gamdimitri staessens2017-04-204-21/+78
| | | | | | | | | | The complete policy will now build a complete graph. Currently a simple timer is used to check the member list periodically.
* | ipcpd: normal: Extract SDU scheduling componentSander Vrijders2017-04-194-127/+236
|/ | | | | | This extracts the SDU scheduling component out of the Flow Manager since the functionality was duplicated. For both the N-1 and N+1 flow sets an SDU scheduling component is now created.
* ipcpd: Allow specifying the hash algorithm to usedimitri staessens2017-04-163-18/+18
| | | | Currently CRC32, MD5, and SHA3 (224, 256, 384 and 512 bit) are supported.
* ipcpd: Fix unregistration in normaldimitri staessens2017-04-131-0/+2
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* lib, ipcpd, irmd: Register hash instead of namedimitri staessens2017-04-1316-185/+96
| | | | | | | | | 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: Fix race condition with concurrent allocsdimitri staessens2017-04-061-3/+41
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* ipcpd: normal: Change assert to NULL checkSander Vrijders2017-04-061-1/+5
| | | | | | An assertion was done instead of NULL check, where the FRCT instance could legitimately be NULL, resulting in the IPCP dying when it shouldn't.
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