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The memset function was used without including <string.h>, which some
compilers complain about.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The clang and gcc compilers don't complain about variable length
arrays using the -c89 flag unless the flag -Wvla or -Wpedantic is
set. This also fixes a memleak and two false positive uninitialized
variable warnings reported by the clang static analyzer in graph.c.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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The Loop-Free Alternates policy had bad memory management in two
places. In the calculation of the LFAs a table was freed in the first
iteration of a loop, whereas it was still needed in the other
iterations. It is now freed outside of the loop. In the alternate PFF
the address structs were not freed upon shutdown, this has been added
as well. It also fixes some bad initialization in the LFA calculation
function.
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
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There was a missing free in case the address was not found in the
routing table when trying to add an LFA for a certain address.
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
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Happy New Year, Ouroboros.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
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This refactors ouroboros to use "program" instead of "application
process" and "process" instead of "application process instance" to
align with current naming in current Operating Systems courses instead
of the ISO nomenclature adopted by RINA. This change permeates through
the entire implementation. Also contains some minor other refactors.
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 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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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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This fixes several bugs as reported by the clang static analyzer.
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This revises the build system to have configuration per system
component. System settings can now be set using cmake.
The standard compliance defines were removed from configuration header
and are set in the sources where needed. Also some small code
refactors, such as moving the data for shims out of the ipcp structure
to the respective shims were performed.
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This makes the routing component into a policy since different
approaches may exist to do this, depending on how high the rank of the
DIF is.
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