1*1031c584SApple OSS Distributions #include <libkern/libkern.h> 2*1031c584SApple OSS Distributions #include <libkern/section_keywords.h> 3*1031c584SApple OSS Distributions #include <libkern/compression/compression.h> 4*1031c584SApple OSS Distributions 5*1031c584SApple OSS Distributions #if defined(SECURITY_READ_ONLY_LATE) 6*1031c584SApple OSS Distributions SECURITY_READ_ONLY_LATE(const compression_ki_t*) compression_ki_ptr = NULL; 7*1031c584SApple OSS Distributions static SECURITY_READ_ONLY_LATE(registration_callback_t) registration_callback = NULL; 8*1031c584SApple OSS Distributions #else 9*1031c584SApple OSS Distributions const compression_ki_t* compression_ki_ptr = NULL; 10*1031c584SApple OSS Distributions static registration_callback_t registration_callback = NULL; 11*1031c584SApple OSS Distributions #endif 12*1031c584SApple OSS Distributions 13*1031c584SApple OSS Distributions void compression_interface_register(const compression_ki_t * ki)14*1031c584SApple OSS Distributionscompression_interface_register(const compression_ki_t *ki) 15*1031c584SApple OSS Distributions { 16*1031c584SApple OSS Distributions if (compression_ki_ptr) { 17*1031c584SApple OSS Distributions panic("compression interface already set"); 18*1031c584SApple OSS Distributions } 19*1031c584SApple OSS Distributions 20*1031c584SApple OSS Distributions compression_ki_ptr = ki; 21*1031c584SApple OSS Distributions 22*1031c584SApple OSS Distributions if (registration_callback) { 23*1031c584SApple OSS Distributions registration_callback(); 24*1031c584SApple OSS Distributions } 25*1031c584SApple OSS Distributions } 26*1031c584SApple OSS Distributions 27*1031c584SApple OSS Distributions void compression_interface_set_registration_callback(registration_callback_t callback)28*1031c584SApple OSS Distributionscompression_interface_set_registration_callback(registration_callback_t callback) 29*1031c584SApple OSS Distributions { 30*1031c584SApple OSS Distributions if (callback && registration_callback) { 31*1031c584SApple OSS Distributions panic("compression interface registration callback is already set"); 32*1031c584SApple OSS Distributions } 33*1031c584SApple OSS Distributions 34*1031c584SApple OSS Distributions registration_callback = callback; 35*1031c584SApple OSS Distributions } 36