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2019-07-23afb-xreq: Remove field 'listener'Jose Bollo3-6/+18
This simplifies the flow that now has only one case: the callbacks subscribe/unsubscribe of struct afb_xreq_query_itf. Bug-AGL: SPEC-2658 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh> Change-Id: Ia49f3ce7aaa4d8603014fe163f311eadfcbf68e4
2019-07-18Fix bad memory access at client disconnectionJosé Bollo4-13/+12
The management of structures handling a client connection to a exported --ws-server was accessing freed memory. Tha commit fixes that issue. Bug-AGL: SPEC-2651 Change-Id: I511218afc907308347bc422a8aead32ca00bdae6 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2019-07-18Tag broadcasted events with UUID and hopJosé Bollo9-38/+138
When API have mutual dependencies, leading to loops in dependecies, broadcasting an event never ends because of the loop (see SPEC-2625). To avoid that weird flood of events, a unic identifier (UUID) is attached to broadcasted event and a tiny memory records previously broadcasted events to avoid re-sending an already sent event. The size of the memory can be set using the macro variable EVENT_BROADCAST_MEMORY_COUNT whose default value is 8. It can be reduced to 0. An other mecanism is added to limit the count of hops that a broadcasted event can do. That count can be set using the macro variable EVENT_BROADCAST_HOP_MAX whose default value is 10. Bug-AGL: SPEC-2625 Change-Id: I29550a8a5c8f5e2ffb20edc3330357a1e870c0e2 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-07-18afb-evt: Refactor processing of broadcasted eventsJosé Bollo6-87/+68
Solving the bug SPEC-2625 needs to rework the broadcasting of events. It appeared that the numerical event identifier passed for broadcast wasn't used by called function except for hooking. Suppressing it introduces a clear distinction between the push and the broadcast paths. The file afb-ws-json1 is changed to avoid casting of functions. Bug-AGL: SPEC-2625 Change-Id: I9fe75adc8086812b21b70ce28baffcf77bd5e1cf Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-07-18uuid: Add module for UUID generationJosé Bollo4-70/+125
This commit allow modules of afb-daemon to request UUID. This introduce an abstraction above libuuid for 3 reasons: 1. Using uuid had bad side effect inthe past because it required enought entropy at start time, leading to hanging initialisations in wait for enough entropy. 2. Solving bug SPEC-2625 will require use of UUID. 3. Porting to systems that haven't libuuid is made more easy after that. Bug-AGL: SPEC-2625 Change-Id: I27d8b611946686dea6fab250697afe9b89aac869 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-07-12afb-client-demo: Allow pipe of messageshalibut_7.99.3halibut/7.99.37.99.3Jose Bollo1-17/+25
The tool afb-client-demo implements a synchronous mode (option -s) that allows to wait for a reply before to send the next request. It is interesting for the purpose of testing to allow afb-client-demo it to send a controlled count of requests, ensuring that there is a controlled count of pending requests. Bug-AGL: SPEC-2638 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh> Change-Id: Ic854d68aaeb82c17b4640c5c9de46181ad3a7e5e
2019-07-12afb-xreq: Forbids (un)subscribes after replyJose Bollo1-12/+22
Allowing to subscribe to a request that was replied was possible and lead to problem revealed by issues SPEC-2542 and SPEC-2599 (these issues are more related to processing unordered incoming messages). The choice was - fix the bug and authorize (un)subscribe after reply - forbids to (un)subscribe after reply Second solution was chosen for its simplicity and its networking efficiency. Bug-AGL: SPEC-2542 Bug-AGL: SPEC-2599 Change-Id: I09f48b760b1fd6f70d42b80df3c8053696c45966 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2019-07-12Revert "afb-stub-ws: Allow unordered process of messages"José Bollo1-1/+1
This reverts commit 5425e054fbf87fe6d024103f46e53f2a28e074f2. The change introduced in the reverted commit is no more necessary since events are sent asynchronousely. Bug-AGL: SPEC-2215 Bug-AGL: SPEC-2219 Bug-AGL: SPEC-2542 Bug-AGL: SPEC-2599 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh> Change-Id: I4fd8d1516c97e2f95caaa244e28491f71b15bba7
2019-07-12afb-evt: send events in separate jobJose Bollo2-42/+227
Sending events in the context of the calling process had the consequence that the ordering of the messages had to be removed (see SPEC-2215 & SPEC-2219). This was not good by nature and lead to issues SPEC-2542 and SPEC-2599. Sending events in the context of the calling process also implies to delay the calling process. For this reasons, sending events is now done in an other jobs. For that reason, the count of allowed pending jobs is increased to 100 (was 50). Bug-AGL: SPEC-2215 Bug-AGL: SPEC-2219 Bug-AGL: SPEC-2542 Bug-AGL: SPEC-2599 Change-Id: I5b56d952cc187b65ad6eb9344ad74e5e8d3b7540 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2019-07-12afb-evt: Improve compatibility to guppyJosé Bollo1-89/+99
The commit "a2cf84e: hooks: Allow to remove hooking" re-order fragment of code. But this is an issue when backporting changes to guppy. That commit improve the situation for the file afb-evt.c in the process of fixing the issue SPEC-2599 Bug-AGL: SPEC-2599 Signed-off-by: José Bollo <jose.bollo@iot.bzh> Change-Id: I4e56cbeee7d3a89770e37a3045f652f39fc07410
2019-07-09afb-args: Fix output of --versionJosé Bollo1-13/+5
The legacy V1 and V2 versions of bindings are no more printed if absent. The support of dynamic bindings is fixed. Bug-AGL: SPEC-2617 Signed-off-by: José Bollo <jose.bollo@iot.bzh> Change-Id: I429c0e2cdfcbfba6e0f1e639dbcbc2ca90a345ed
2019-07-09Fix invalid TRACE setting in print versionSebastien Douheret1-1/+1
Bug-AGL: SPEC-2617 Change-Id: Ia935aab3b0b508e7a916e334237c639efb1feb15 Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>
2019-06-04Build af-binder-devtools-native using GCC-9.1.1halibut_7.99.2halibut/7.99.27.99.2Bechir Mghirbi1-1/+2
GCC-9.1.1 complains about variable ‘buf[0]’ that it may be used uninitialized in the function 'make_info()'. This patchset initialize the variable. Bug-AGL: SPEC-2482 Signed-off-by: Bechir Mghirbi <bechir.mghirbi@grammer.com> Change-Id: I38d0c6f47fed462f4ea48990c4cb63f21fb2ee16
2019-05-29afb-daemon: Add /tmp has fallback for uploadshalibut_7.99.1halibut/7.99.17.99.1José Bollo1-2/+6
During its start, when implementing HTTP server, afb-daemon checked that the upload directory was accessible and writable and afb-daemon refused to start when it was not the case. When trying to use systemd's DynamicUser for platform services, it had the effect to forbid service to run. That commit add the directory /tmp as a fallback upload directory. Bug-AGL: SPEC-2446 Signed-off-by: José Bollo <jose.bollo@iot.bzh> Change-Id: Ib4ee456d71cb1aefa19e8eed6774ef5f77919366
2019-05-29jobs: Fix infinite wait lockJosé Bollo3-0/+10
The binder was sometime locked until an external event comes. This was discovered during stressing startup test that don't expect external inputs and that then waits for always without terminating. The issue came from a little hole in the management of the state of evmgr object. By design the evmgr has to be synchronised against concurrent accesses not by itself but by the integration. However, the state of "running" wasn't set in the code protected against concurent accesses. The new function allows the integrator to correctly set the state before releasing protection. Bug-AGL: SPEC-2459 Signed-off-by: José Bollo <jose.bollo@iot.bzh> Change-Id: Id75fd97c06d69666ced912a0a61380573dab31af
2019-05-03afb-export: Fix requirement on multiple apisJosé Bollo8-28/+109
The test 'test-apiv3' was failing because the required api list "albert armel" wasn't splitted but set as-is. At the same time, test suite is improved. Bug-AGL: SPEC-1130 Bug-AGL: SPEC-2377 Change-Id: Ia4ab23bf666b5b4b1db3e1da2654d9387c2c01e5 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-04-30Allow to tune installation directoriesJosé Bollo2-8/+10
The location of intrinsic bindings and samples could not be tuned but was fixed to be ${CMAKE_INSTALL_FULL_LIBDIR}/afb and ${CMAKE_INSTALL_FULL_DATADIR}/af-binder These default locations are not bad but it is important to be able to tune that location. Bug-AGL: SPEC-2367 Change-Id: I4d4f9e9490d61e3278ef35ac42f2143a752a7c37 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-04-12Fix small issuesJose Bollo2-3/+5
These issues was discovered by static analysis tool. Change-Id: Iea75151c9b1f5e4cb139d2dc4e8a5c8bae5bb303 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2019-04-04afb-export: Fix heap corruptionJosé Bollo1-1/+1
The allocated size wasn't correct when 'path' was used. The effect be unseen depending on size and alignment of heap chunks. Change-Id: Id9f85a0078028319491b51bc3e11cd51e4bc3755 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-04-02Fix false ***buffer overflow*** detectionJosé Bollo11-28/+28
The compiling option __FORTIFY_SOURCE=2 introduced a false ***buffer overflow*** detection when the flexible array 'pattern' was initilized in globset. The compiler is only complaining when the array is in a struct that is in a struct like struct { ...; struct { ...; char name[1]; }} To avoid these false detections, it is enougth to ellipsese the dimension of the array. Seems to be the now standard way of declaring flexible arrays when it was before an extension. So now: struct { ...; struct { ...; char name[]; }} works even when __FORTIFY_SOURCE=2. Bug-AGL: SPEC-2292 Change-Id: I4b4a5df505a5357f92b9ab1657175911198ca582 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-04-02Add conditionnal support of dynamic bindingsJose Bollo16-20/+63
The load of dynamic bindings becomes removable. This is a step in direction of a tiny binder library. Also refactor AGL_DEVEL Signed-off-by: Jose Bollo <jose.bollo@iot.bzh> Change-Id: If283f431fd8a831429e717b2770464cb54476dc7
2019-04-02Add conditionnal support of bindings version 2Jose Bollo13-81/+185
Bindings version 2 will become legacy soon. This patch allows their removal Change-Id: Iecad3abd0ddd714e5d55c0b935be756a29d1ca37 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2019-04-02Improve setting of optionsJose Bollo14-85/+101
Change-Id: Idbadb9b7b801cb61d527addb5d3137aeb4cf6311 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2019-04-02jobs: Refactor exiting jobsJosé Bollo3-74/+63
The new termination function can allow the restart because it doesn't abort the waiting jobs. So after calling 'jobs_exit', all threads stop. The function 'job_start' returns. The threads that are in blocking state, i.e. in a call to 'jobs_enter' or 'jobs_call' are stopped. An error status -1 with errno=EINTR is returned in that case. But before returning, that function calls the exit handler if any. Change-Id: I85a4b1976b09b18804eb681af940531ae5ace6c3 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-04-02evmgr: Fix a "maybe uninitialized" issueJosé Bollo1-1/+2
The warning maybe-uninitialized is emited only when the optimisation level is greater than 0. For this reason, the error was not discovered development process. The build config is tuned to detect that error and the error is fixed. Change-Id: I14c8ffe6daa3d498268cfadeab20300895b3360e Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-29Rename afb-config to afb-argsJosé Bollo8-32/+22
With the introduction of more compilation flags, it becomes interesting to use a configuration file. The configuration file is usually "config.h". So that renaming avoids future ambiguity. It also reflects better what the module does. Change-Id: I952adc1e1bf469132dc224900bd9140ccc51c58b Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-29hooks: Allow to remove hooking (and/or trace)Jose Bollo25-400/+614
This change allows to downsize the binder by removing its internal hooking and tracing features. Change-Id: Ifb080a7426216f6c6b1c8f8e5bf8ddd52df40a3e Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2019-03-29sig-monitor: Add compiling switchesJosé Bollo3-84/+206
The following new switches are added: - USE_SIG_MONITOR_DUMPSTACK activate dump stack on error - USE_SIG_MONITOR_SIGNALS activate handling of signals - USE_SIG_MONITOR_FOR_CALL activate monitoring of calls - USE_SIG_MONITOR_TIMERS activate monitoring of call expiration All enabled by default Change-Id: I2231e5f2a8db469b7258ce14530f72b4c5f38b00 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-29afb-args: Use secure_getenvJosé Bollo1-3/+3
Improves security of the binder by using secure_getenv instead of getenv. Change-Id: Iffd56ca65251763aacb0b9dbbaa768619cd92dd4 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-27evmgr: Isolate the event loop from jobsJosé Bollo4-152/+281
The event loop is renamed evmgr for "event manager" with the intention (1) still use evloop in jobs (2) to provide an abstract event manager/handler/loop abstraction. Change-Id: Ib1955f661f98df80e1c7be99e9fe26a1e06d78f6 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-27system & jobs: Reverse link and acquiring eventsJosé Bollo7-39/+81
- The new version of 'systemd_get_event_loop' dont depends anymore on jobs but returns a unique systemd event loop for any threads. - The event loop of jobs now use system.h function instead of the opposite. - The function 'jobs_get_sd_event' is removed - The function 'jobs_acquire_event_manager' is introduced. It is designed to that the current thread can manipulate the single event manager Change-Id: I31fe48dfe0f2cfa4d468e49338d36fea6e7e8081 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-27Rename afb-systemd to systemdJosé Bollo9-34/+36
Files "afb-systemd.[ch]" are renamed "systemd.[ch]" and their functions "afb_systemd_*" are renamed "systemd_*" Change-Id: I8362a2ca8b71945b54c6ab9a7ead51d9c50bc8e2 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-27watchdog: Isolate the watchdog from jobsJosé Bollo6-15/+88
Change-Id: Iaa7f71dc7e5d8d525463619b4da980c827722909 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-27jobs: Clean unneeded codeJosé Bollo1-2/+0
Minor cleanup Change-Id: Iddcaf85cdc30f74e54016ce300380b33662fbc04 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-22jobs: Ensure validy of event loopFrederic Marec1-0/+3
In rare circumstances during intialization threads should wait instead of using a null event loop. This is because no one has needed event loop at this stage of initialization. Change-Id: I05b6ddbc05bec50958d0981213219b1d641401a5 Signed-off-by: Frederic Marec <frederic.marec@iot.bzh>
2019-03-12json2c: Fix a fatal warningJosé Bollo1-3/+3
At the end, the case is never reached because json_object_to_json_string_ext only produces valid JSON strings and a string terminated by '\' isn't a valid JSON string. Change-Id: I58a6dc4d9c014487ff2dc85f7eb3dbf33ffea6b1 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-03-07afb-stub-ws: Allow unordered process of messagesJosé Bollo1-1/+1
Requests are already sequenced on need (noconcurrency flag of bindings). Sequencing messages until their completion has a side effect when dealing with events and synchronous calls: event -> call -> reply locked until event completion (see SPEC-2219). This change could be reverted if events are converted to jobs (see SPEC-2215). Bug-AGL: SPEC-2219 Change-Id: Ia577bc54ba38291817fd5ed3e3dda1b67b2818b7 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-02-08afb-stub-ws: Fix concurrent memory issuesJosé Bollo1-3/+4
This changes takes care to increment the the count of reference before using it. Bug-AGL: SPEC-2163 Change-Id: Ia7882427eeae933eeb5030aad025ebb1da129d6f Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-02-06Update copyright datehalibut_7.90.0halibut/7.90.07.90.0José Bollo133-135/+135
Change-Id: I3aaa92b2bfb01699ee8ae609272e93032b6f1a9d Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-02-06jobs: Ensure releasing event loopJose Bollo1-1/+2
The internal functions blocking threads for implementing call_sync were not releasing the event loop, leading to deafness of the binder. Include a tuto-4 that reproduce the issue on a binder with the bug and that also shows interesting usages of the binder. Bug-AGL: SPEC-2161 Change-Id: I83ad4d55d721a6046e798a5e06967df4dd5a7284 Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2019-01-18afb-hsrv: Avoid call to getnameinfoJosé Bollo1-6/+12
Calling getnameinfo may block the program a long time (5s) when address is zero. Bug-AGL: SPEC-2133 Change-Id: Id52b2989c5e996363fd4b6f39049f059a6ee97a2 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-01-16jobs: Remove conditionnal REMOVE_SYSTEMD_EVENTJose Bollo3-128/+0
The removal of the systemd event loop will be made in later changes. Change-Id: Ia6c52feb4969f360c31cbfc50ae991f1767f007d Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2019-01-16jobs: Separate internal threads from othersJosé Bollo1-61/+92
Foreign threads, that are not started by jobs, are allowed to use synchronous jobs_call/job_leave (directly or indirectly). This commit ensure that those foreign thread will neither acquire the eventloop nor execute jobs. Includes a tiny cleanup of remain usage. Bug-AGL: SPEC-2089 Change-Id: I2ad7fcfe2c276e34bdc4ec0c2aa3a4207bea1854 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-01-16jobs: Refactor event loop handlingJosé Bollo3-125/+184
This improves the arbitration of the single event loop across threads. Before introduction of using 'evenfd' there was several event loop. At the current time, there is only one. At the end, there will probably remain only one. Bug-AGL: SPEC-2089 Change-Id: Iac9db7cbe15b4c9c76e6e9a8f6e641ed2a9039e0 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-01-16afb-proto-ws: Serialize incoming messageJosé Bollo3-7/+6
Enforce serialisation for a connection Bug-AGL: SPEC-2089 Change-Id: Id9f261b7cc02fda78922dc511856c34b7c5bf56d Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2019-01-04afb-api-v3: Fix potential buffer overflowJose Bollo1-4/+5
Change-Id: I170e127ebf96d2accfdd6d6a4ec322afeaa2782f Signed-off-by: Jose Bollo <jose.bollo@iot.bzh>
2018-12-31jobs: Fix a lock of call syncJose Bollo1-24/+59
Sometime the function jobs_leave missed to wake up the process that expected the result. It happened when that waiting thread was locked in the epoll. That commit unlock it. Bug-AGL: SPEC-2089 Change-Id: I6ab6a60a8c9ea3639143f282f90c7b77ed16853a Signed-off-by: Jose Bollo <jose.bollo@iot.bzh> Signed-off-by: Clément Bénier <clement.benier@iot.bzh>
2018-12-14wrap-json: Upgrade to latest versionJosé Bollo1-18/+19
Change-Id: I3eb4e922cb5106bcf8a1ccc5e1b010bd0a60bf34 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2018-12-13afb-hsrv: Prepare selection of listening interfacesJose Bollo4-14/+139
The listening socket will no more be the default one but will be the selected ones, with ability to select more than just one listening interface. Nevertheless, the behavior is not changed at the moment. The default interface (0.0.0.0) is still used. A further change will add the ability to select the listening interfaces. That evolution depends on a fix of libmicrohttpd to enable at the same time epoll and no-listen-fd. Bug-AGL: SPEC-1833 Bug-AGL: SPEC-1016 Change-Id: Ia78671cbee90a243ba7b2c724b6155cffbde6920 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
2018-12-13afb-trace: Make real timestampsJosé Bollo1-10/+0
The optimisation that represent the timestamp as a fake double is not accurate in local context. Bug-AGL: SPEC-2051 Change-Id: I285837251507a69ad210823020d0cf69ad5999f3 Signed-off-by: José Bollo <jose.bollo@iot.bzh>