1*699cd480SApple OSS Distributions #include <libkern/libkern.h> 2*699cd480SApple OSS Distributions #include <libkern/section_keywords.h> 3*699cd480SApple OSS Distributions #include <libkern/compression/compression.h> 4*699cd480SApple OSS Distributions 5*699cd480SApple OSS Distributions #if defined(SECURITY_READ_ONLY_LATE) 6*699cd480SApple OSS Distributions SECURITY_READ_ONLY_LATE(const compression_ki_t*) compression_ki_ptr = NULL; 7*699cd480SApple OSS Distributions static SECURITY_READ_ONLY_LATE(registration_callback_t) registration_callback = NULL; 8*699cd480SApple OSS Distributions #else 9*699cd480SApple OSS Distributions const compression_ki_t* compression_ki_ptr = NULL; 10*699cd480SApple OSS Distributions static registration_callback_t registration_callback = NULL; 11*699cd480SApple OSS Distributions #endif 12*699cd480SApple OSS Distributions 13*699cd480SApple OSS Distributions void compression_interface_register(const compression_ki_t * ki)14*699cd480SApple OSS Distributionscompression_interface_register(const compression_ki_t *ki) 15*699cd480SApple OSS Distributions { 16*699cd480SApple OSS Distributions if (compression_ki_ptr) { 17*699cd480SApple OSS Distributions panic("compression interface already set"); 18*699cd480SApple OSS Distributions } 19*699cd480SApple OSS Distributions 20*699cd480SApple OSS Distributions compression_ki_ptr = ki; 21*699cd480SApple OSS Distributions 22*699cd480SApple OSS Distributions if (registration_callback) { 23*699cd480SApple OSS Distributions registration_callback(); 24*699cd480SApple OSS Distributions } 25*699cd480SApple OSS Distributions } 26*699cd480SApple OSS Distributions 27*699cd480SApple OSS Distributions void compression_interface_set_registration_callback(registration_callback_t callback)28*699cd480SApple OSS Distributionscompression_interface_set_registration_callback(registration_callback_t callback) 29*699cd480SApple OSS Distributions { 30*699cd480SApple OSS Distributions if (callback && registration_callback) { 31*699cd480SApple OSS Distributions panic("compression interface registration callback is already set"); 32*699cd480SApple OSS Distributions } 33*699cd480SApple OSS Distributions 34*699cd480SApple OSS Distributions registration_callback = callback; 35*699cd480SApple OSS Distributions } 36