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* ipcpd: Move alloc race mitigation to common sourceDimitri Staessens2023-08-306-235/+100
| | | | | | | | | | All flow allocator code was duplicating the mitigation for a race where the IRMd response for the flow allocation with a new flow fd was arriving before the response to the flow_req_arr. This is now moved to the ipcp common source. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Don't release sdb before writing packetDimitri Staessens2023-08-301-20/+25
| | | | | | | | | The flow allocator fa_alloc_resp would release the packet buffer (sdb) before writing if the response was a failure. Also sets the IPCP allocation timeout in nanoseconds as per the comment. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Set IPCP states in common sourcesDimitri Staessens2023-08-306-25/+12
| | | | | | | | The state of the IPCP was set and checked in the main files, but it's more convenient to do it in the common source. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Remove unused rwlockDimitri Staessens2023-08-301-2/+1
| | | | | Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Simplify including common enrollment codeDimitri Staessens2023-08-305-31/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | The common enrollment code between the unicast and broadcast IPCP included the same C source from a source file in the unicast and broadcast directories. Now it's handled by defining COMMON_SOURCES for the unicast and broadcast IPCP. For now, only the enrollment component is common. Two things are needed for the connection manager: * Routing to be fixed to use a supporting broadcast layer. Then management flows can be removed from the unicast IPCP (as they are in fact data transfer flows of the broadcast layer that supports the routing dissemination traffic). * DHT to enroll as part of IPCP enrollment. Now it enrolls when a data transfer flow is established to be more akin to how Kademlia nodes join a Kademlia DHT, but this should be revised to adhere more to O7s enrollment concepts. After that, the connection manager code will also be completely shared between the unicast and broadcast layer and the connmgr will also be common code. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Add IDs to enrollmentDimitri Staessens2023-08-234-171/+200
| | | | | | | | The enrollment messages now have a 64-bit ID to easier track enrollments in the logs in larger scale tests. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* include: Revise printing hashesDimitri Staessens2023-08-236-17/+22
| | | | | | | | | | | The code was a bit convoluted to print hashes as hex strings. Renamed to HASH_FMT32 and HASH_VAL32 to make clear we are printing the first 32 bits only, and added options to print 64 up to 512 bits as well. This doesn't depend on endianness anymore. Adds a small test for the hash (printing) functions. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix leaked filedescriptors in ipcpd-udpDimitri Staessens2023-07-311-2/+10
| | | | | | | Found by GCC static analyzer. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Use consistent function namingDimitri Staessens2023-03-243-70/+70
| | | | | | | | | | For instance ipcp_udp_* vs eth_ipcp_*. Now all functions are <type>_ipcp_*. Als cleans up some minor things. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* icpdp: Fix layer information for ipcpd-udpDimitri Staessens2023-03-243-5/+5
| | | | | | | | | | | | | The refactors removed the need to set the hash algorithm for the ipcpd-udp and the ipcpd-broadcast. However, the algorithm was not set at bootstrap, so the ipcpd-udp was trying to use an SHA3-256 instead of an MD5, causing flow allocation over the UDP to fail. The ipcpd-broadcast used the default, so there was no problem. Fixed by setting the correct algorithm for these ipcpds at bootstrap. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix condvar initialization in ipcpd-udpDimitri Staessens2023-03-241-2/+13
| | | | | | | The clock was not explicitly initialized in the ipcpd-udp. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix long log line in enrollmentDimitri Staessens2023-03-181-1/+2
| | | | | Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Remove semicolon after protobuf messagesDimitri Staessens2023-03-181-2/+2
| | | | | | | | Doesn't seem to be needed, this makes it uniform in all protobuf files. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* irmd: Add configuration file supportDimitri Staessens2023-03-087-225/+109
| | | | | | | | | | | | | | | | | | | | | This adds initial support for configuration files using the C99 TOML parser (to be installed separately from https://github.com/cktan/tomlc99). The default location for the IRMd configuration file is /etc/ouroboros/irmd.conf. This is configurable at build time. An example file will be installed in the configuration directory with the name irmd.conf.example. Config file support can be disabled using the DISABLE_CONFIGFILE build option. There were some refactors and changes to the configuration messages and protobuf files. This works towards consolidation of protobuf C as an option for more generic handling of serialization/deserialization of various messages. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix address conversion in ipcpd-udpDimitri Staessens2023-03-011-2/+2
| | | | | | | Bug introduced in 269f25d3. The wrong pointer was passed to inet_ntop. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Refactor hash internalsDimitri Staessens2023-02-231-20/+2
| | | | | | | | The internal hash enum now matches the public one w.r.t. directory hash policies. This removes some unnecessary conversion. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: refactor IPCP configurationDimitri Staessens2023-02-1310-406/+423
| | | | | | | | | | The ipcp configuration struct now has internal structures for the different IPCPs and for IPCP components of the unicast IPCP. Split the very long IPCP main loop into individual handler functions. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* build: Update copyright to 2023Dimitri Staessens2023-02-1372-72/+72
| | | | | | | 2022 was a rather slow year... Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Fix prototypes missing 'void'Dimitri Staessens2023-02-132-6/+6
| | | | | | | Found by Clang version 15. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Refactor main functionsDimitri Staessens2022-07-137-92/+78
| | | | | | | | | | | | | | | | | | | The structure of main functions of the IPCPs was a bit strange with a ipcp_shutdown() call that combined waiting for a terminating signal with stopping the internal threads. This is now revised into a symmetrical design of ipcp_start(), which now includes the create response towards the IRMd. ipcp_sigwait(), which waits for a shutdown signal ipcp_stop() that then stops the internal threads. Now the main() functions of the IPCPs will make sense without checking what that ipcp_shutdown() functions actually does. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix deadlock on exit in udp, local, ethDimitri Staessens2022-05-223-6/+6
| | | | | | | | | | | The IPCP flow_set was getting destroyed with the IPCP main loop still running, causing potential deadlocks. Reported-by: Thijs Paelman Confirmed-by: Dimitri Staessens <dimitri@ouroboros.rocks> Tested-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* build: Update copyright to 2022Dimitri Staessens2022-04-0372-72/+72
| | | | | | | Growing pains. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Add np1_flow_read and np1_flow_write callsDimitri Staessens2022-03-307-19/+39
| | | | | | | | | | | | | | | | Reading/writing to (N + 1)-flows from the IPCP was using a raw QoS flow to bypass some functions in the ipcp_flow_read call. But this call was broken for keepalive packets. Fixing the ipcp_flow_read call for (N - 1) flows causes the IPCPs to drop 0-byte keepalive packets coming from (N + 1) client flows. >From now on, there is a dedicated call for (N + 1) reads/writes from the IPCPs that's more efficient and cleaner. The (N + 1) flow internal QoS is now also defaulted to a qos_np1 qosspec, instead of tampering with the qosspec requested by the (N + 1) client. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Refactor reading packet from rbuffDimitri Staessens2022-03-305-10/+10
| | | | | | | | | | | | Reading packets from the rbuff and checking their validity (non-zero size, pass crc check, pass decryption) is now extracted into a function. Also adds a function to get the length of an sdu_du_buff instead of subtracting the tail and head pointers. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix memcpy with NULL in piggyback APIDimitri Staessens2022-03-083-6/+12
| | | | | | | | If there is no piggyback data, memcpy was passed a NULL pointer in memcpy(buf, NULL, 0) calls, which is undefined behaviour. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Refactor kad_req_createDimitri Staessens2022-03-081-20/+25
| | | | | | | A small refactor of the kad_req_create function's cleanup code. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipdpd: Pass MPL to application at flow_allocationDimitri Staessens2022-03-0811-12/+43
| | | | | | | | | | | | The maximum packet lifetime (MPL) is a property of the flow that needs to be passed to the reliable transmission protocol (FRCP) for its correct operation. Previously, the value of MPL was set fixed as one of the (fixed) Delta-t parameters. This patch makes the MPL a property of the layer, and it can now be set per layer-type at build time. This is a step towards a proper MPL estimator in the flow allocator. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* irmd, ipcp: Remove socket option in acceptloopDimitri Staessens2022-03-031-6/+1
| | | | | | | | | | | | | We cancel the thread, so the SO_RCVTIMEO is not needed anymore (it dated from when we checked the state every so often. The address sanitizer is complaining about the the cleanup handlers in the acceptloops after the thread gets cancelled in the read(). I've tried to resolve it, but no avail. Pretty convinced it's a false-positive, so ASan will ignore these functions for now. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Make flow liveness timeout configurableDimitri Staessens2022-03-033-2/+12
| | | | | | | | | The qosspec_t now has a timeout value that sets the timeout value of the flow. Flows with a peer that has timed out will now return -EFLOWPEER on flow_read() or flow_write(). Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix some unchecked return valuesDimitri Staessens2022-03-034-24/+45
| | | | | | | Fixes some unchecked and wrongly checked return values. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix potential double unlock in ethDimitri Staessens2022-02-211-23/+15
| | | | | | | | | When handling management frames, there was a cancellation point after the unlock, which would cause the cleanup handler to attempt a double unlock if the thread was cancelled at that point. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Refactor sendingflow allocation responseDimitri Staessens2022-02-211-21/+33
| | | | | | | | Small refactor taking the wait for the flow allocation to complete out. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Refactor flow allocator message handlingDimitri Staessens2022-02-211-113/+170
| | | | | | | | This refactors the single long function that handles incoming packets destined for the flow allocator. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix hashing and overlapping memcpy in pffDimitri Staessens2022-02-182-12/+4
| | | | | | | | | The pft hash function assumed mem_hash allocates memory, but it does not. There was also a memcpy with potentially overlapping memory regions, which is undefined behaviour. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix deadlock in dht_unregDimitri Staessens2022-02-181-8/+3
| | | | | | | | | The dht_del function was called under lock in dht_unreg, and then tried to take the lock again, a 100% deadlock. Also fix uninitialized value in dht_retrieve. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Use random buffer for flat addressDimitri Staessens2022-02-181-15/+4
| | | | | | | Less code, and less chance of a collision. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix potential overflow in DDNS resolverDimitri Staessens2022-02-181-1/+1
| | | | | | | The count value could be IPCP_UDP_BUF_SIZE, overflowing buf. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Remove unused wait_state functionDimitri Staessens2022-02-182-34/+0
| | | | | | | Probably a leftover from previous shutdown logic. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Check return value of enroll_packDimitri Staessens2022-02-181-2/+2
| | | | | | | Better to check the error code than the out parameter. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix bounds check on PROG_MAX_FLOWSDimitri Staessens2022-02-181-2/+2
| | | | | | | Off-by-one error in the bounds check. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix initialization of hash width in DHTDimitri Staessens2022-02-171-5/+7
| | | | | | | | | | The width of the Kademlia hash function (dht->b) was set only after the ID was created. This should have failed miserably, but the bytes after were fine as they were just a randomized ID in the Kademlia network. Nasty. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix free in fail path of readdirDimitri Staessens2022-02-173-3/+3
| | | | | | | | | The free of the buffer in the failure path of the readdir RIB functions was taking the wrong pointer in a couple of places. The FRCT RIB readdir was missing error handling for malloc and strdup. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Use wrlock for rotating multipath pff entryDimitri Staessens2021-12-291-12/+14
| | | | | | | | The multipath pff entry was modified (rotated) under a read lock, which is now changed to a write lock. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Allow creation of multiple directoriesDimitri Staessens2021-12-295-421/+523
| | | | | | | | | To allow merging large network layers, a situation will arise where multiple directories need to coexist within the layer. This reverts commit 9422e6be94ac1007e8115a920379fd545055e531. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Fix waiting for FRCP to time outDimitri Staessens2021-12-221-1/+1
| | | | | | | | | | The timeout variable was not correctly passed to the IPCP, causing flow IDs to be reused immediately instead of waiting for the full Delta-t to expire. This caused all kinds of havoc with retransmissions in reliable flows. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Add dt component to regular startup flowDimitri Staessens2021-12-061-16/+9
| | | | | | | | | The dt component had init/start commands somewhat outside of the overall flow of startup of the unicast IPCP. This was probably some old code and wasn't needed. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Consolidate policies within folderDimitri Staessens2021-12-0611-12/+125
| | | | | | | | Each policy folder will now have a pol.h file, so that (in most cases) adding a new policy only requires changes inside the policy folder. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Make the DHT a directory policyDimitri Staessens2021-12-068-29/+81
| | | | | | | | The DHT is now a proper directory policy instead of a unicast IPCP component. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Move DHT to stackDimitri Staessens2021-12-064-498/+410
| | | | | | | | | | This makes the DHT a single directory implementation and moves it to the stack (init/fini instead of create/destroy). This is a step towards making it a directory policy, in line with our other policy implementations. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* ipcpd: Restructure policy codeDimitri Staessens2021-12-0633-72/+106
| | | | | | | | The policies were all in a single folder pol/, and have been moved to a folder per component/mechanism to keep things a bit more orderly. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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