1*d4514f0bSApple OSS Distributions #include <libkern/libkern.h> 2*d4514f0bSApple OSS Distributions #include <libkern/section_keywords.h> 3*d4514f0bSApple OSS Distributions #include <libkern/compression/compression.h> 4*d4514f0bSApple OSS Distributions 5*d4514f0bSApple OSS Distributions #if defined(SECURITY_READ_ONLY_LATE) 6*d4514f0bSApple OSS Distributions SECURITY_READ_ONLY_LATE(const compression_ki_t*) compression_ki_ptr = NULL; 7*d4514f0bSApple OSS Distributions static SECURITY_READ_ONLY_LATE(registration_callback_t) registration_callback = NULL; 8*d4514f0bSApple OSS Distributions #else 9*d4514f0bSApple OSS Distributions const compression_ki_t* compression_ki_ptr = NULL; 10*d4514f0bSApple OSS Distributions static registration_callback_t registration_callback = NULL; 11*d4514f0bSApple OSS Distributions #endif 12*d4514f0bSApple OSS Distributions 13*d4514f0bSApple OSS Distributions void compression_interface_register(const compression_ki_t * ki)14*d4514f0bSApple OSS Distributionscompression_interface_register(const compression_ki_t *ki) 15*d4514f0bSApple OSS Distributions { 16*d4514f0bSApple OSS Distributions if (compression_ki_ptr) { 17*d4514f0bSApple OSS Distributions panic("compression interface already set"); 18*d4514f0bSApple OSS Distributions } 19*d4514f0bSApple OSS Distributions 20*d4514f0bSApple OSS Distributions compression_ki_ptr = ki; 21*d4514f0bSApple OSS Distributions 22*d4514f0bSApple OSS Distributions if (registration_callback) { 23*d4514f0bSApple OSS Distributions registration_callback(); 24*d4514f0bSApple OSS Distributions } 25*d4514f0bSApple OSS Distributions } 26*d4514f0bSApple OSS Distributions 27*d4514f0bSApple OSS Distributions void compression_interface_set_registration_callback(registration_callback_t callback)28*d4514f0bSApple OSS Distributionscompression_interface_set_registration_callback(registration_callback_t callback) 29*d4514f0bSApple OSS Distributions { 30*d4514f0bSApple OSS Distributions if (callback && registration_callback) { 31*d4514f0bSApple OSS Distributions panic("compression interface registration callback is already set"); 32*d4514f0bSApple OSS Distributions } 33*d4514f0bSApple OSS Distributions 34*d4514f0bSApple OSS Distributions registration_callback = callback; 35*d4514f0bSApple OSS Distributions } 36