| Commit message (Collapse) | Author | Age | Files | Lines |
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When killing the oping client before it sent an SDU, some bad
operations were being performed.
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When a flow was in FLOW_ALLOCATED state, it would not change to NULL
state and irm_flow_destroy would hang forever.
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ipcp-data was not correctly destroyed.
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The cleanup was trying to close a pointer to the file descriptor.
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Blocking I/O now uses condition variables in the shared memory instead
of busy waiting. Timeouts can be specified. This requires the size of
the rbuffs and du_map to be the same, to guarantee that when the
shm_du_map is not full, the ap_rbuffs can't be full either.
Added the timeout option to the flow for future use.
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Ouoroboros ping application mimics the GNU ping application.
do "oping --help" for options.
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This adds a flow_select() call that will sleep until an SDU can be
read on a flow. It returns the file descriptor for which an SDU is
ready. It takes as optional argument a timespec struct to specify a
timeout.
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shim-eth-llc: Fix for bad drivers
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It seems like drivers are setting the Ethernet length field wrong when
sending an LLC message. The LLC shim now writes the payload length in
the frame to circumvent the wrong information from the driver.
Also fixes deallocation.
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Be enrolment
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This will add more functionality for enrolling two normal IPCPs with
each other. Some bugs were fixed in CDAP. Now on enrolling, an IPCP
will send a START message to the other IPCP. Next step is syncing the
RIBs.
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This provides the normal IPCP with bootstrapping and the initial steps
for enrollment. Next step is actually reacting to an enrollment
request and sending the data transfer constants.
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Various portability fixes for FreeBSD. POSIX requires shm file names
to start with a "/" to be portable. lseek(2) can be undefined on
POSIX shm, replaced with ftruncate(2). IRMd check on existing lockfile
more portable.
FreeBSD 11.0 is preferred as it natively supports robust mutexes.
Full working LLC implementation pending.
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Upon receipt of a frame, the minimum of the length reported in the
frame and the frame length reported by kernel is taken. Some device
drivers change the length in the frame. Some others add padding,
making the length reported by the kernel too high. This is a lousy
workaround to make it work on as many systems as possible.
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It was missing the FLOW_PENDING state. All states that are not
FLOW_ALLOCATED should return -1. This is now fixed.
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When a pending accept is shutdown on irmd exit, there are no more
threads running, but it should also change the state to NULL. This is
now correctly handled in the cleanup of the cancellation point.
Also fixed a busy wait with a condition variable.
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irmd: Revised flow allocation
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Flow allocation requests and registered api states revised so all
states are tracked with a condition variable. This is a more reliable
approach and improves stability of flow allocation.
Some other refactoring was also done, such as renaming port_map_entry
to irm_flow and hiding some internal structures of the registry.
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The protobuf include directory was not being correctly handed to the
compiler when building. Now the include directory is added
project-wide. And the protobuf package is searched for only once.
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ipcpd: normal: Add main loop to normal IPCP
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This adds the main loop to the normal IPCP, just like it is present in
the shim IPCPs. So in essence, the normal IPCP now reacts to all
operations from ipcp.h.
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The destroy now only frees after all threads stopped using the object.
Also fixes a SEGV when trying to allocate a flow to a remote name.
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ipcpd: normal: Establish N-1 management flows
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This adds the intial implementation of establishing management N-1
flows between normal IPCPs. On calling fmgr_mgmt_flow, a management
flow will be setup to a certain destination IPCP. After flow
allocation, the fd is handed to the RIB manager. The flow manager also
listens for incoming flow requests. In case they are management flows,
they are handed to the RIB manager, otherwise to the FRCT.
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This adds the initial headers for the normal IPCP. The normal IPCP
consists of 3 main components:
* The flow manager, in charge of managing N and N-1 flows.
* The RIB manager, in charge of managing the RIB
* FRCT: The flow and retransmission control task
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This removes the parameter N-1 DIF from the enroll operation. IPCPs
should just allocate a flow to a DIF name and let the N-1 DIF resolve
it.
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Correct implementation of allocation for the Protocol Control
Information. Also removes stale code checking for a corner case when
the du map still wrapped multi-block SDU's.
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Easier names for the functions.The registry now uses a single list to
keep track of applications (bindings), moved the auto_exec state per
binding.
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For locally registered processes, the IRMd will first look for the
local, then the normal, then the shim-udp. It will look for a normal,
a shim-eth-llc and ultimately a shim-udp for non-local destinations.
It does not yet check if a remote destination is actually known in a
DIF.
Fixes #18.
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All includes of <errno.h> within ouroboros are replaced with the
ouroboros errno.
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The pid of the IRMd is stored in a lockfile in shared memory. This
makes checking if the IRMd is running independent of the
configuration, as previously the IRMd pid was stored at the end of the
shm_du_map, which could not be read by an IRMd that would be compiled
with different configuration options.
Also corrects some unnecessary includes
Fixes #21.
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lib:irmd: Fix logs and irm_create
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IRMd and ipcps will now close the logfile upon exit.
Also corrects exit(1) to exit(EXIT_FAILURE) and exit(0) to
exit(EXIT_SUCCESS).
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The irm_create() function called irmd_destroy before some key values
were initialized.
Logs cleanup was missing.
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Added check if the owner of the du map is actually running so a new
IRMd instance can remove a stale DU map.
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clean_sdus now has a boolean flag to let it know the process has
exited.
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Writing output to log files is now enabled by default. Logs are
written to <INSTALL_PREFIX>/var/log/ouroboros, which is created on
install. There is a log file for the irmd and one per IPCP. To still
get (colored) output on stdout, provide the --stdout switch when
starting the irmd.
Fixes #17
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When an application closes the shm_du_map, it will clean all remaining
sdu's for that application. Adds a function to clean the shm_du_map on
close.
Fixes #20.
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The irmd will now collect terminated child processes (autostarted
api's and ipcpd's). Upon exit, all autostarted api's will be killed.
Fixes #19.
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