1*0f4c859eSApple OSS Distributions #include <libkern/libkern.h> 2*0f4c859eSApple OSS Distributions #include <libkern/section_keywords.h> 3*0f4c859eSApple OSS Distributions #include <libkern/compression/compression.h> 4*0f4c859eSApple OSS Distributions 5*0f4c859eSApple OSS Distributions #if defined(SECURITY_READ_ONLY_LATE) 6*0f4c859eSApple OSS Distributions SECURITY_READ_ONLY_LATE(const compression_ki_t*) compression_ki_ptr = NULL; 7*0f4c859eSApple OSS Distributions static SECURITY_READ_ONLY_LATE(registration_callback_t) registration_callback = NULL; 8*0f4c859eSApple OSS Distributions #else 9*0f4c859eSApple OSS Distributions const compression_ki_t* compression_ki_ptr = NULL; 10*0f4c859eSApple OSS Distributions static registration_callback_t registration_callback = NULL; 11*0f4c859eSApple OSS Distributions #endif 12*0f4c859eSApple OSS Distributions 13*0f4c859eSApple OSS Distributions void compression_interface_register(const compression_ki_t * ki)14*0f4c859eSApple OSS Distributionscompression_interface_register(const compression_ki_t *ki) 15*0f4c859eSApple OSS Distributions { 16*0f4c859eSApple OSS Distributions if (compression_ki_ptr) { 17*0f4c859eSApple OSS Distributions panic("compression interface already set"); 18*0f4c859eSApple OSS Distributions } 19*0f4c859eSApple OSS Distributions 20*0f4c859eSApple OSS Distributions compression_ki_ptr = ki; 21*0f4c859eSApple OSS Distributions 22*0f4c859eSApple OSS Distributions if (registration_callback) { 23*0f4c859eSApple OSS Distributions registration_callback(); 24*0f4c859eSApple OSS Distributions } 25*0f4c859eSApple OSS Distributions } 26*0f4c859eSApple OSS Distributions 27*0f4c859eSApple OSS Distributions void compression_interface_set_registration_callback(registration_callback_t callback)28*0f4c859eSApple OSS Distributionscompression_interface_set_registration_callback(registration_callback_t callback) 29*0f4c859eSApple OSS Distributions { 30*0f4c859eSApple OSS Distributions if (callback && registration_callback) { 31*0f4c859eSApple OSS Distributions panic("compression interface registration callback is already set"); 32*0f4c859eSApple OSS Distributions } 33*0f4c859eSApple OSS Distributions 34*0f4c859eSApple OSS Distributions registration_callback = callback; 35*0f4c859eSApple OSS Distributions } 36