1*2c2f96dcSApple OSS Distributions #include <libkern/libkern.h> 2*2c2f96dcSApple OSS Distributions #include <libkern/section_keywords.h> 3*2c2f96dcSApple OSS Distributions #include <libkern/compression/compression.h> 4*2c2f96dcSApple OSS Distributions 5*2c2f96dcSApple OSS Distributions #if defined(SECURITY_READ_ONLY_LATE) 6*2c2f96dcSApple OSS Distributions SECURITY_READ_ONLY_LATE(const compression_ki_t*) compression_ki_ptr = NULL; 7*2c2f96dcSApple OSS Distributions static SECURITY_READ_ONLY_LATE(registration_callback_t) registration_callback = NULL; 8*2c2f96dcSApple OSS Distributions #else 9*2c2f96dcSApple OSS Distributions const compression_ki_t* compression_ki_ptr = NULL; 10*2c2f96dcSApple OSS Distributions static registration_callback_t registration_callback = NULL; 11*2c2f96dcSApple OSS Distributions #endif 12*2c2f96dcSApple OSS Distributions 13*2c2f96dcSApple OSS Distributions void compression_interface_register(const compression_ki_t * ki)14*2c2f96dcSApple OSS Distributionscompression_interface_register(const compression_ki_t *ki) 15*2c2f96dcSApple OSS Distributions { 16*2c2f96dcSApple OSS Distributions if (compression_ki_ptr) { 17*2c2f96dcSApple OSS Distributions panic("compression interface already set"); 18*2c2f96dcSApple OSS Distributions } 19*2c2f96dcSApple OSS Distributions 20*2c2f96dcSApple OSS Distributions compression_ki_ptr = ki; 21*2c2f96dcSApple OSS Distributions 22*2c2f96dcSApple OSS Distributions if (registration_callback) { 23*2c2f96dcSApple OSS Distributions registration_callback(); 24*2c2f96dcSApple OSS Distributions } 25*2c2f96dcSApple OSS Distributions } 26*2c2f96dcSApple OSS Distributions 27*2c2f96dcSApple OSS Distributions void compression_interface_set_registration_callback(registration_callback_t callback)28*2c2f96dcSApple OSS Distributionscompression_interface_set_registration_callback(registration_callback_t callback) 29*2c2f96dcSApple OSS Distributions { 30*2c2f96dcSApple OSS Distributions if (callback && registration_callback) { 31*2c2f96dcSApple OSS Distributions panic("compression interface registration callback is already set"); 32*2c2f96dcSApple OSS Distributions } 33*2c2f96dcSApple OSS Distributions 34*2c2f96dcSApple OSS Distributions registration_callback = callback; 35*2c2f96dcSApple OSS Distributions } 36