1*c54f35caSApple OSS Distributions #include <libkern/libkern.h> 2*c54f35caSApple OSS Distributions #include <libkern/section_keywords.h> 3*c54f35caSApple OSS Distributions #include <libkern/compression/compression.h> 4*c54f35caSApple OSS Distributions 5*c54f35caSApple OSS Distributions #if defined(SECURITY_READ_ONLY_LATE) 6*c54f35caSApple OSS Distributions SECURITY_READ_ONLY_LATE(const compression_ki_t*) compression_ki_ptr = NULL; 7*c54f35caSApple OSS Distributions static SECURITY_READ_ONLY_LATE(registration_callback_t) registration_callback = NULL; 8*c54f35caSApple OSS Distributions #else 9*c54f35caSApple OSS Distributions const compression_ki_t* compression_ki_ptr = NULL; 10*c54f35caSApple OSS Distributions static registration_callback_t registration_callback = NULL; 11*c54f35caSApple OSS Distributions #endif 12*c54f35caSApple OSS Distributions 13*c54f35caSApple OSS Distributions void compression_interface_register(const compression_ki_t * ki)14*c54f35caSApple OSS Distributionscompression_interface_register(const compression_ki_t *ki) 15*c54f35caSApple OSS Distributions { 16*c54f35caSApple OSS Distributions if (compression_ki_ptr) { 17*c54f35caSApple OSS Distributions panic("compression interface already set"); 18*c54f35caSApple OSS Distributions } 19*c54f35caSApple OSS Distributions 20*c54f35caSApple OSS Distributions compression_ki_ptr = ki; 21*c54f35caSApple OSS Distributions 22*c54f35caSApple OSS Distributions if (registration_callback) { 23*c54f35caSApple OSS Distributions registration_callback(); 24*c54f35caSApple OSS Distributions } 25*c54f35caSApple OSS Distributions } 26*c54f35caSApple OSS Distributions 27*c54f35caSApple OSS Distributions void compression_interface_set_registration_callback(registration_callback_t callback)28*c54f35caSApple OSS Distributionscompression_interface_set_registration_callback(registration_callback_t callback) 29*c54f35caSApple OSS Distributions { 30*c54f35caSApple OSS Distributions if (callback && registration_callback) { 31*c54f35caSApple OSS Distributions panic("compression interface registration callback is already set"); 32*c54f35caSApple OSS Distributions } 33*c54f35caSApple OSS Distributions 34*c54f35caSApple OSS Distributions registration_callback = callback; 35*c54f35caSApple OSS Distributions } 36