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* ipcpd: Fix deadlock in DHTdimitri staessens2017-09-241-27/+41
| | | | | | | | | | | | | The lookup_update was waiting for the LU_INIT state to resolve under dht->lock which prevented that update. This PR fixes this bug, but leaves a (very rare) bug when the lookup_destroy is called while the lookup_update is waiting for the LU_INIT state to resolve. The solution also is a (harmless) lock inversion, but this is also not the best. Fixes #51 Fixes #52
* ipcpd: Add threadpool manager to DHTdimitri staessens2017-09-245-309/+404
| | | | | | | | | | | This adds a threadpool manager to the DHT. This was needed because the detached thread could cause a data race on shutdown. The threadpool manager is revised to allow multiple instances in a single program. The irmd and ipcp now store commands in a buffer (list) instead of a single buffer before passing it to handler threads.
* Merged in dstaesse/ouroboros/be-bugfixes (pull request #614)dimitri staessens2017-09-232-76/+124
|\ | | | | | | Some bugfixes
| * ipcpd: Don't publish DHT entries under lockdimitri staessens2017-09-231-30/+85
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| * lib: Clean up bitmap implementationdimitri staessens2017-09-231-46/+39
| | | | | | | | | | | | There was a return -1 in the allocate call which is unsafe since -1 may be a valid id in the bitmap. Since it's a data structure for internal use, I replaced the NULL checks with assertions.
* | Merged in dstaesse/ouroboros/be-bugfixes (pull request #613)dimitri staessens2017-09-232-9/+17
|\| | | | | | | Some bugfixes
| * ipcpd: Lock dht before reading parametersdimitri staessens2017-09-231-7/+14
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| * ipcpd: Fix data race in shim-udpdimitri staessens2017-09-231-2/+3
| | | | | | | | | | This fixes a data race in the shim-udp where the alloc_lock was released before the ipcpi.alloc_id was set.
* | lib: Disable lockless rbuff by defaultSander Vrijders2017-09-221-2/+2
| | | | | | | | | | This disables the lockless rbuff by default since it is less stable and tested.
* | ipcpd: Fix DHT recursive lookupdimitri staessens2017-09-221-1/+4
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* ipcpd: Mark len parameter as unused in simple_pffdimitri staessens2017-09-211-0/+4
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* lib: Include string.h in hashtable.c for memcpydimitri staessens2017-09-211-0/+1
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* Merged in dstaesse/ouroboros/be-cancel (pull request #609)dimitri staessens2017-09-213-72/+85
|\ | | | | | | ipcpd: Cancel threads in IPCPs
| * ipcpd: Cancel threads in IPCPsdimitri staessens2017-09-213-72/+85
| | | | | | | | | | | | This reduces CPU consumption and shutdown times. Invalidates #43
* | Merged in sandervrijders/ouroboros/be-lfa-pff (pull request #607)Sander Vrijders2017-09-2110-71/+569
|\ \ | |/ |/| | | ipcpd: normal: Add alternate hop PFF
| * ipcpd: normal: Add alternate hop PFFSander Vrijders2017-09-2110-71/+569
| | | | | | | | | | This adds a PFF that returns an alternate hop as next hop in case the hop that would have been returned is down.
* | ipcpd: Use the kernel scheduler for QoSdimitri staessens2017-09-213-61/+106
|/ | | | | | | | | This revises the sdu_scheduler of the normal IPCP to create a scheduler thread per QoS cube and let the kernel scheduler schedule them based on a priority. Priorities can be set at build time in a range of 0-100, which will be mapped onto a suitable priority for the kernel scheduler. The current scheduler policy is fixed to SCHED_RR since it is the most suitable scheduler defined by POSIX.
* lib: Pass the fuse struct to the handling threaddimitri staessens2017-09-212-5/+3
| | | | This avoids potential data races on rib.fuse.
* Merged in dstaesse/ouroboros/be-dht-revision (pull request #605)dimitri staessens2017-09-211-15/+58
|\ | | | | | | ipcpd: Handle DHT SDUs in different thread
| * ipcpd: Handle DHT SDUs in different threaddimitri staessens2017-09-201-15/+58
| | | | | | | | | | | | | | The DHT will now spawn a thread when receiving SDUs to avoid starvation of sdu scheduler threads. Also fixes some locking issues.
* | Merged in sandervrijders/ouroboros/be-pff (pull request #604)Sander Vrijders2017-09-2018-140/+417
|\ \ | |/ |/| | | ipcpd: normal: Make PFF policy-based
| * ipcpd: normal: Make PFF policy-basedSander Vrijders2017-09-2018-140/+417
| | | | | | | | | | This turns the PDU Forwarding Function of the IPCP into a policy. For now only the simple PFF policy is available.
* | ipcpd: Fix shutdown of ribdimitri staessens2017-09-201-0/+3
|/ | | | Fixes #50
* irmd: Init libgcrypt before using itdimitri staessens2017-09-204-3/+20
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* Merged in dstaesse/ouroboros/be-dht-query-refuse (pull request #601)dimitri staessens2017-09-191-0/+3
|\ | | | | | | ipcpd: Refuse query when DHT not in running state
| * ipcpd: Refuse query when DHT not in running statedimitri staessens2017-09-191-0/+3
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* | Merged in dstaesse/ouroboros/be-fuse-msg (pull request #600)dimitri staessens2017-09-191-0/+2
|\ \ | | | | | | | | | build: Notify if FUSE is not installed
| * | build: Notify if FUSE is not installeddimitri staessens2017-09-191-0/+2
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* / ipcpd: Fix contact list in DHTdimitri staessens2017-09-191-3/+3
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* ipcpd: Enroll DHT when creating dt connectiondimitri staessens2017-09-198-94/+148
| | | | | | | | | 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.
* ipcpd, lib: Add flow down eventsSander Vrijders2017-09-198-105/+316
| | | | | | | | This adds the flow down event to Ouroboros. In the shim-eth-llc, a netlink socket is opened which listens to device up/down events. For each event the flow is then adjusted with fccntl to notify the user the flow is down or back up again. In the normal IPCP an event is thrown if a write reports that the flow is down.
* ipcpd: Fix src and dst in link-state advertisementsdimitri staessens2017-09-181-2/+2
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* lib: Provide RIB API to export internals via fusedimitri staessens2017-09-187-18/+565
| | | | | | | 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.
* lib: Add reordering queue to FRCTSander Vrijders2017-09-155-13/+331
| | | | | This adds a reordering queue to FRCT so that SDUs can be delivered in-order when requested.
* build: Fix DDNS tool detection for shim-udpdimitri staessens2017-09-134-22/+30
| | | | | | This fixes output when detecting DDNS tools and homogenizes output and the APIs used to pass variables between the build system and the sources. Fixes some minor issues and typos).
* Merged in dstaesse/ouroboros/be-rib-removal (pull request #589)dimitri staessens2017-09-1335-4111/+701
|\ | | | | | | ipcpd: Revise internals of normal IPCP
| * ipcpd: Revise internals of normal IPCPdimitri staessens2017-09-1235-4111/+701
| | | | | | | | | | | | | | | | 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: shim-eth-llc: Fix FreeBSD compilationSander Vrijders2017-09-111-15/+17
|/ | | | | This fixes the compilation on FreeBSD systems. A define was missing. It also fixes some style errors.
* Merged in dstaesse/ouroboros/be-dht-deadlock (pull request #588)dimitri staessens2017-09-081-6/+4
|\ | | | | | | ipcpd: Shutdown DHT work thread first at destroy
| * ipcpd: Shutdown DHT work thread first at destroydimitri staessens2017-09-071-6/+4
| | | | | | | | This prevents a potential deadlock on the wrlock.
* | 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.
* Merged in sandervrijders/ouroboros/be-redef (pull request #586)Sander Vrijders2017-09-071-2/+1
|\ | | | | | | ipcpd: normal: Avoid redefining a typedef
| * ipcpd: normal: Avoid redefining a typedefSander Vrijders2017-09-061-2/+1
| | | | | | | | | | This avoids a redefinition of a typedef which is a C11 feature, and thus not supported by clang when the c89 switch is enabled.
* | build: Add systemd unit on installSander Vrijders2017-09-051-1/+1
|/ | | | This adds a systemd unit for the irmd on installation of Ouroboros.
* ipcpd: normal: Simplify enroll APISander Vrijders2017-09-015-12/+10
| | | | | | | 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.
* lib: Add per instance FRCT lockSander Vrijders2017-09-011-21/+35
| | | | | This adds a per instance FRCT lock, since it was taking a write lock, thereby severely impacting parallelism in dev.c
* Merged in dstaesse/ouroboros/be-fccntl (pull request #583)dimitri staessens2017-08-318-163/+140
|\ | | | | | | lib: Add fccntl configuration command
| * lib: Add fccntl configuration commanddimitri staessens2017-08-318-163/+140
| | | | | | | | | | | | | | This replaces the flow_set_* commands with a single fccntl command that can configure flows and the FRCT instance. For more details, see "man 3 fccntl".
* | ipcpd: Add check if name was already registeredSander Vrijders2017-08-305-31/+20
| | | | | | | | | | This adds a check in the shims if a name was already registered, since it should not return an error.
* | irmd: Add specific timeout for IPCP connectSander Vrijders2017-08-303-0/+7
|/ | | | | | This adds a specific timeout for IPCP connect, since it may take a lot longer than the regular socket timeout due to flow allocations in the IPCP.
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