| Commit message (Collapse) | Author | Age | Files | Lines |
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OS X uses a different syntax for specifying ELF sections.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The library initializers with argc and argv arguments were specified
using the __attribute__((constructor)). This is undefined behaviour as
constructors should have no arguments. This is fixed by passing the
functions to the .init_array.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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This fixes the IRMd thinking a shim-eth-llc is available after it is
disabled by configuring Ouroboros using ccmake.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The oping tool now stores the time it sent the packet inside the SDU,
simplifying the implementation.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The HAVE_LIBGCRYPT variable was not defined for IPCPs, causing them to
call the gcrypt functions with the wrong values for the enum.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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Variable in cache need to be explicitly unset else they will remain in
the cache and still be defined by #cmakedefine.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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This adds a check that the passed process id is in fact a number and
not gibberish.
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
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Some compiler versions complained about a missing return in non-void
function.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The *dist pointer was not reset on failure, causing the caller to try
to free an unmalloced or already freed pointer.
Reported-by: Nick Aerts <nick.aerts@ugent.be>
Tested-by: Nick Aerts <nick.aerts@ugent.be>
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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This adds three build types, DebugASan, DebugTSan and DebugLSan that
enable the Address, Thread and Leak Sanitizer by setting the fsanitize
flag to the compiler. This option is supported by both gcc and clang.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The build didn't reset the CMake variable for OPENSSL_LIBRARIES,
causing bad input to the linker. This error showed up when trying to
build on XUbuntu 17.10 without OpenSSL or libgrcypt installed.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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When bootstrapping an IPCP entry->api variable was accessed after the
registry was unlocked for printing and info message.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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There were sources defined in multiple libraries. This issue was
reported by the address sanitizer on FreeBSD.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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When the netmap driver is used for the LLC shim, the label
fail_device: was never used, resulting in a compiler error.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The RIB implementation was using internal variables from the linux
implementation instead of the POSIX defined macros. The POSIX defined
macros require defining __USE_XOPEN to access them.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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Endianness conversion from/to the network for the sequence number was
missing in 68694bc.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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This replaces the variable FRCT header with a packed struct, which
significantly simplifies the implementation. The shm_du_buff calls to
release the head/tail are updated to return a pointer to the original
head or the new tail (in symmetry to the alloc calls, which return a
pointer to the new head and old tail), so that it immediately points
to the structure that is needed.
The frct_pci sources are removed and frct is now fully in the frct.c
source file.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The lsdb will now list management and data transfer adjacencies.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The DHT join operation left an SDU in the rdrbuff for a couple of
seconds during retries, which may cause the system to block if there
is heavy traffic. This patch releases the sdb when the write fails and
creates a new packet for every retry.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The frct_pci and rq headers are moved from include/ouroboros to
src/lib since they are only needed in the library. FRCT is moved to
its own source file.
FRCT takes the application PDUs, encapsulates and processes them and
hands them back. This makes it easier to disable FRCT should the
application want to write to a "raw" flow. An FRCT instance is now
allocated upon alloc and released upon dealloc.
The FRCT data structure is split into a sender and receiver connection
record. Setting a new configuration will now be done upon sending the
next data PDU, which will flag the DRF for a new run and use that
configuration. This avoids some issues should packets arrive
out-of-order, and simplifies setting a configuration.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The FLOWFNONBLOCK flag now has two subflags FLOWFRNOBLOCK and
FLOWFWNOBLOCK which allows setting the behavior of read and write
independently. The default behavior is unchanged (blocking read and
write).
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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This revises the library init script so that it checks whether the
program is run by a python executable (python, python2 or python3) and
announces the script name instead of the python interpreter. This
enables binding python scripts.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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There were unnecessary comment lines in cbr.c, this removes them.
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
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A more permissive license is needed on the tools since they serve as
example code for programs built on top of the ouroboros-dev and
ouroboros-irm libraries.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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This simplifies the echo-app tool implementation to a single source
file since it's meant to be a small example application.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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If the library init() fails, the fini() call tries to access
unreleased resources. The fix resets the ai struct to 0 if init()
fails and checks a heap pointer for NULL before the fini() accesses
internals.
Signed-off-by: dimitri staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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#626)
Be deprecate ouroboros init fini
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This commit deprecates ouroboros_init and ouroboros_fini and adds them
as a constructor or destructor, causing these function to be run
automatically when a program that links to the library calls and exits
main(). For this to fully work, the library had to be split so that we
can avoid the irmd calling these functions (the IRMd has to create the
shm structures on which these calls depend).
The library is split in 3 parts: libouroboros-dev, libouroboros-irm
and libouroboros-common. The latter is linked to the other two so that
including libouroboros-dev or libouroboros-irm will also link
libouroboros-common.
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lib: Re-enable multi-block support
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Multi-block support was forgotten during the update of the build
system. This enables it again and fixes some bugs when it is disabled
and larger SDUs are sent.
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Closing the file descriptor after a while(true) loop led to clang
compiler errors. This is fixed by adding a cleanup handler.
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ipcpd: Handle cancellation while writing LSAs
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This adds a cleanup handler to ensure the lock is released in the
event that the thread is cancelled during a write. An alternative
solution could be to make the flow write in a non-blocking way (only
the blocking write contains an execution path that has a cancellation
point).
Fixes #55
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This adds the --version option to the IRMd. With this option it will
print the version of Ouroboros to stdout and exit. Checking the
version does not require root privileges.
Also fixes calling log functions before log_init() and after
log_fini().
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This allows the IPCPs to call ouroboros_fini() and clean up their
buffers and drastically reduce chances of getting an assertion error
that some rbuffs are not empty when shutting down the irmd.
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This makes the threadpool use pthread_cancel instead of setting an
exit flag that threadpool managed threads check periodically. This
drastically reduces CPU consumption in the irmd when running a lot of
applications. It requires cancellation handlers in the ipcp and irmd
to be implemented to ensure safe cancellation during operation and
shutdown.
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This will let the link state policy react to flow up and down events
by notifying the PFFs of the routing instances of this event so they
can take an appropriate action.
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This adds the Loop-Free Alternates (LFA) policy. In case a link goes
down a LFA may be selected to route the SDUs on without causing loops
instead of the main hop that just went down.
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Be routing
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This adds a refcount to the graph edges so that it is only included in
the calculation if both sides announced it.
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This keeps the index in the vertex struct so that is more easily
available during Dijkstra.
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This simplifies the Dijkstra implementation by immediately setting the
correct next hop during Dijkstra instead of looping through the list
of predecessors afterwards.
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This simplifies several internal graph functions by passing an array
of bools instead of an array of vertices.
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This returns a list as routing table instead of a pointer to a pointer
to a pointer, which simplifies the looping through the routing table
and makes it more extensible for future additions.
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ipcpd: normal: Set clock to realtime clock
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A pthread_cond_wait was using the pthread_cond_clock and thereby
timing out constantly, consuming 100% CPU. This changes it to use the
realtime clock.
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The lookup_update was waiting for the LU_INIT state to resolve under
dht->lock which prevented that update.
This PR fixes this bug, but leaves a (very rare) bug when the
lookup_destroy is called while the lookup_update is waiting for the
LU_INIT state to resolve. The solution also is a (harmless) lock
inversion, but this is also not the best.
Fixes #51
Fixes #52
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This adds a threadpool manager to the DHT. This was needed because the
detached thread could cause a data race on shutdown.
The threadpool manager is revised to allow multiple instances in a
single program.
The irmd and ipcp now store commands in a buffer (list) instead of a
single buffer before passing it to handler threads.
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Some bugfixes
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