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* build: Revise the build systemdimitri staessens2017-08-211-1/+2
| | | | | | | | | | 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.
* lib: Check system-specific call firstdimitri staessens2017-08-171-6/+6
| | | | The build failed on OS X if an old version of libgrypt is installed.
* build: Replace fsf snail mail with contact URLdimitri staessens2017-08-131-2/+1
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* build: Fix compilation on OS X Sierradimitri staessens2017-08-111-3/+16
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* build, lib, ipcpd, irmd: Add support for libgcryptdimitri staessens2017-08-091-5/+6
| | | | | | | | | | | | | | | | This adds support for libgcrypt. If at least version 1.7.0 of libgcrypt is present, it may be used for secure random number generation and is used for hashing in the irmd/ipcp. The hash definitions are moved to the internal hash.h header, and defined independently of the hashes that are defined as part of the directory policy for the normal IPCP. The translation is moved from the IRMd to ipcpd/ipcp.h. The bootstrap call from the IRMd expects the IPCP to return the correct hash algorithm with a dif_info struct, which is in line with the behavior of the enroll call. This also improves how some platform checks in the build system are handled.
* lib: Add secure random generatordimitri staessens2017-07-091-0/+51
This adds a secure random number generator. It will use OS specific calls with a fallback to OpenSSL if available.