| Commit message (Collapse) | Author | Age | Files | Lines |
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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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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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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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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 stack used pid 0 (the scheduler) to indicate an invalid process
instance, probably as a leftover from the deprecated application
process instance id. Using -1 is a better solution.
Fixes #16.
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When introducing robust mutexes, ouroboros moved to POSIX 200809L
which includes the strdup function in <string.h>. Including
<ouroboros/config.h> will give access to strdup.
Fixes #15.
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This commit introduces a first version of the revised CDAP
specification. CACEP (for authentication purposes) has been separated
from CDAP. Application developers may use CDAP if they find it
useful. Within Ouroboros CDAP will be used to perform operations on
the RIB of an IPCP.
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This PR enhances the shared memory providing recovery if a process
crashes. It adds a SHM_DU_TIMEOUT_MICROS variable, setting an
expiration time for SDU's when shared memory is full. If an
application doesn't read a blocking SDU within this time, the shared
memory will be cleansed of all SDU's for this application and the
application's rbuff will be cleared.
Some refactoring of the API's. Fixed wrong pthread checks in IRMd.
Fixes #13
Fixes #14
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Fixes #3
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Changes the variable name as well to API instead of PID.
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This changes the IRM API after discussions with Dimitri. The register
operation is now split into a bind and register operation. The same
for unregister; unbind and unregister. PIDs are now used as the
application instance name. A name for a PID is only provided for
scriptability in bash. It is therefore also no longer passed down to
the IPCP. Every operation on an IPCP through the IRM API has to use
the PID. Quering of the PIDs by name is possible. The IRM tool has
been updated to use this new API as well. A subcommand 'ipcp' has been
added for operations that take effect on IPCPs only.
Fixes #12
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Be udp dealloc
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shim UDP would deadlock upon a dealloc call. fd_clr cannot be called
under wrlock.
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Be shim fixes
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getsockname() can give bad behaviour when haphazardly looping fd's,
added check that the fd has a flow. Replaced LOG_DBGF with LOG_DBG.
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paths cannot start with "/" or PREFIX will be omitted. PREFIX must be
set before the project() call.
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The installation prefix was taking a trailing backslash, while it is
common not to do so. Fixed it so that any trailing backslash is
removed by the compilation and installation scripts.
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Functionality that was previously thought to be part of the DIF
Allocator is actually namespace management. Hence the file has been
renamed and the API updated.
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This adds error numbers specificly for Ouroboros. It also refactors
some of the header files that are installed.
Fixes #2
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Update to POSIX 200112L to allow use of robust mutexes in the
shm_du_map. Removed the implementation of the rw_lock in favor of
pthread_rwlock_t.
Placeholder for the shm_du_map_sanitize function.
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This adds the RX_RING and TX_RING socket options to the shim-eth-llc
for faster transmission and reception. On systems where these options
are not available the old method of sending and receiving is
used. Further optimization would be creating and assigning a
read/write thread per CPU core, but that becomes very platform
specific, and is not required in the short term.
Fixes #10
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This sets the correct install directories for all the binaries,
library and header files. It also sets the right permissions on the
sockets and shared memory so that regular users can also use the
ouroboros library. Root privileges are required to run the irmd.
Fixes #7
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Unlock missing when compiled without DNS support.
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Adds a thread that cleans up stale pending flows. Compile time option
IRMD_FLOW_TIMEOUT allows setting the timeout period. Default timeout is
5 seconds. The thread wakes up 20 times per period to check the
flows.
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The ipcpds didn't unlock the flows lock when the dst_name is
unbeknownst to the IRMd.
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The shim Ethernet with LLC was using the frame length in the header of
the 802.3 frame, which contained a wrong value when sent over the
wire. Probably the kernel filled in a wrong value. Now it uses the
length as reported by recv.
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The source AP name was still present in the protobuf message the
shim-eth-llc uses.
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This removes the source AP name from all shim-eth-llc flow allocation
operations, since it was removed from flow allocation by 6271d09bd.
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Now correctly deallocates the local fd if the remote already
deallocated the flow.
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The registration function has been moved to the irm tool, applications
now need to be registered by an administrator. Currently only supports
one instance per registered name, and an AP can be registered under
only one name.
The irmd can now start a registered server application on demand.
For the full functionality of the tool, execute "irm register".
AP name removed from flow allocation. Flow allocation does not send
the source ap name as it is quite useless. The accept() call now only
returns the AE name.
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This addresses some comments Dimitri had on the shim Ethernet with
LLC.
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This adds a shim over LLC over Ethernet. It uses the raw socket API to
send messages directly over an interface.
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When the ring buffer is empty, a read call will sleep. A write call on
an empty ring buffer will wake up sleeping readers.
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This stops IPC processes from hanging due to bad locks. It first
informs all threads that the IPCP is shutting down, then cancels all
threads. Cancellation is still required because threads may be in
accept() or receivefrom().
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This introduces an IPC process that relays data between two local AP's
over the shm_du_map. Only configuration it has is a DIF name.
It required small modification elsewhere:
lib: added support for the IPCP_LOCAL type
irm: added support for the IPCP_LOCAL type
dif_config: added the IPCP_LOCAL type
tools: added support for the IPCP_LOCAL type
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The shim UDP did a non-blocking write call, causing loss of
SDU's. This has been changed to a blocking write call.
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In linux, the select call changes the timeout variable to the time not
spent in sleep, causing the timeout to decrease and that loop to grind
the cpu. The timeval is now reset to the correct value every loop.
Also removed a LOG_ERR message that was hampering performance.
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This adds a cleanup handler for the main message loop, which closes
the socket upon pthread_cancel so that the ipcp can exit cleanly.
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