| Commit message (Collapse) | Author | Age | Files | Lines |
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Changes a state of the IPCP to a more correct terminology.
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This will split the IPCP state PENDING_ENROL into IPCP_CONFIG and
IPCP_BOOTING. IPCP_CONFIG is concerned only with configuring the IPCP
with the bare essence. When in IPCP_BOOTING, the IPCP will complete
its configuration by starting its policies, and thus making the IPCP
completely functioning.
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This adds a syntax version to the protobuf files. The latest version
of protobuf otherwise complains that it is missing. The GPL license is
also added on files where it was missing.
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All calls for opening rbuffs are now concentrated on the dev side.
This allows some simplifications in the np1 calls. The ipcp_fini call
will not destroy the mutex associated with the state, since the final
state needs to be checked before shutting down an IPCP.
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Fixes a double free (conf->dif_name) and the handling of non-created
threads when the bootstrap of an IPCP fails
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The steps for flow deallocation have been further refined. An
operation ipcp_flow_fini() which wait for all SDUs to be read from a
flow has been added. The shim IPCPs and the local IPCP have been
adapted to this new API.
Deallocation messages have been removed from the shim IPCPs, since
there is insufficient state synchronisation between them to make this
work reliably.
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A check was missing in the shim UDP if the destination was already
present in the directory, in which case no further queries were
needed.
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lib, irmd, ipcpd: Add name querying to IPCPs
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This adds the ability to query IPCPs if a name can be reached through
them, e.g. if a name is available in a DIF. This means that in the
shim-udp a DNS query is performed, in the shim-eth-llc an ARP-like
query has been added, in the local a check is done to see if the name
is registered, and in the normal currently no application is reachable
through it.
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Fixes memory leaks associated with the dif_name (which doesn't need to
be maintained in shim DIFs) and the fqueue for the N + 1 flows.
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gethostbyname is included in POSIX 2001. Ouroboros requires at least
POSIX 2001 and recommends POSIX 2008 for stable builds.
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CheckLibraryExists was not included. Apparently the
CHECK_FUNCTION_EXISTS call fails with the strict prototyping flag
turned on.
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This has the code checked with -Wcast-qual and -Wconversion flags.
These flags were removed because SWIG generated code fails.
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This reduces the risk for some bugs, for instance due to
signed/unsigned mismatches and unused variables.
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The fast path will now use an incoming ring buffer per flow per
process. This necessitated the development of a new method for the
asynchronous io call, which is now based on an event queue system for
scalability (fqueue). The ipcpd's and tools have been updated to this
API.
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Both the N and N-1 entity must now call flow_dealloc for the port_id
to be released.
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IPCPs can now use ap_init() to initialize the memory. All flows are
accessed using flow descriptors, this greatly simplifies IPCP
development. Reverts the fast path to a single ap_rbuff per process.
Splits lib/ipcp into irmd/ipcp and lib/ipcp-dev. Adds a lib/shim-dev
holding tailored functions for shims. Moves the buffer_t to utils.h.
Fixes the shim-eth-llc length field. Removes the flow from shared.h.
Fixes #4
Fixes #5
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lib: Add northbound ringbuffers
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Fast path is split in north and southbound paths.
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Sending a dealloc to the irmd moved to its own call.
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The shm_du_map is renamed to shm_rdrbuff to reflect the Random
Deletion Ringbuffer used in the implementation. The close_on_exit call
is removed and SDUs are cleaned up by the application in the ap_fini()
call. This required a non-blocking peek() operation in the shm_ap_rbuff.
Some initial implementation for future support of qos cubes has been
added to the shm_rdrbuff.
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IPCPs will report their pid on shutdown for faster debugging.
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The state lock was reverted to an rwlock to avoid interference of
management functions with the fast path. IPCPs now close without
calling unsafe functions in the signal handler.
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Previously it was up to the admin to choose whether or not to enable
DDNS. Now the build just checks if the executables can be found, and
if they are available DDNS functionality is enabled, else it is
disabled.
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This adds a condition variable to the IPCP state, so that upon state
changes any listeners to state changes can be notified. It also
replaces the read/write lock with a mutex in order to be able to do
so.
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This will notify the IRMd when the IPCP is initialized and ready to
receive messages. Previously a bootstrap could fail since the IPCP was
not listening to the socket yet.
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The entry from the ringbuffer was never freed, causing memleak per SDU.
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ipcp-data was not correctly destroyed.
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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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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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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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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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shim UDP would deadlock upon a dealloc call. fd_clr cannot be called
under wrlock.
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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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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 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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