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Flow crypto signalled rotation with a single phase-parity bit, so a
loss burst that hid an even number of rotations went unnoticed and
wedged the flow for good.
Each packet now carries a small cleartext selector naming its key
directly, so a receiver that falls behind recovers on the next packet
instead of getting stuck.
The selector also serves as the AEAD nonce and is authenticated as
associated data (AAD). Key rotation moves into a new backend-agnostic
keyrot module that rotates sub-keys to bound AEAD usage while
preserving forward secrecy.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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The FUSE_PREFIX was set in global.cmake, but before HAVE_FUSE was
defined. The FUSE_PREFIX should be set in fuse.cmake.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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pkg_check_modules(FUSE ...) in fuse.cmake tells CMake's pkg-config
module to use FUSE as the variable prefix. pkg-config then populates
FUSE_PREFIX with the install prefix of libfuse (i.e., usr). This
overwrote the FUSE_PREFIX cache variable set to /tmp/ouroboros in
global.cmake.
IRMd was calling mkdir("/usr", 0777) on startup and rmdir("/usr") on
shutdown. The rmdir only fails because usr isn't empty — if it ever
were (e.g., in a minimal container), it would deleted /usr.
The fix renames the pkg-config prefix from FUSE to FUSE_PKG, so
pkg-config populates FUSE_PKG_PREFIX (harmless) instead of clobbering
FUSE_PREFIX.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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This moves the build definitions back to src/ subdirectories
(CMakeLists.txt per component). Configuration and dependencies are
kept out of tree. Configuration options are bundled into cmake/config/
modules. Dependencies are grouped by component (system/, crypt/, eth/,
coverage/, etc.). It now consistently uses target-based commands
(target_include_directories, target_link_libraries) instead of global
include_directories(). Proper PRIVATE/PUBLIC visibility for executable
link libraries. CONFIG_OUROBOROS_DEBUG now properly set based on being
a valid debug config (not just checking the string name).
It also adds OuroborosTargets export for find_package() support and
CMake package config files (OuroborosConfig.cmake) for easier
integration with CMake projects.
The build logic now follows more idiomatic CMake practices with
configuration separated from target definitions.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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