无标题openssl引擎编写undefined symbol: bind_engine解决方法

Posted 2023-02-22 今天也要努力搬砖

root@cd2e1925ffbe:/work/CyberSecurityCode/OSSL_EngineX# ./build/basic_digest.o
OpenSSL failed to load required configuration
140691275559808:error:2506406A:DSO support routines:dlfcn_bind_func:could not bind to the requested symbol name:crypto/dso/dso_dlfcn.c:188:symname(bind_engine): /work/CyberSecurityCode/OSSL_EngineX/build/engine_ex.so: undefined symbol: bind_engine
140691275559808:error:2506C06A:DSO support routines:DSO_bind_func:could not bind to the requested symbol name:crypto/dso/dso_lib.c:186:
140691275559808:error:260B6068:engine routines:dynamic_load:DSO failure:crypto/engine/eng_dyn.c:447:
140691275559808:error:260BC066:engine routines:int_engine_configure:engine configuration error:crypto/engine/eng_cnf.c:141:section=engine_x_section, name=dynamic_path, value=/work/CyberSecurityCode/OSSL_EngineX/build/engine_ex.so
140691275559808:error:0E07606D:configuration file routines:module_run:module initialization error:crypto/conf/conf_mod.c:177:module=engines, value=engine_section, retcode=-1
root@cd2e1925ffbe:/work/CyberSecurityCode/OSSL_EngineX#

问题：

        参照openssl引擎OSSL_EngineX下载编译后，运行时出错DSO support routines:dlfcn_bind_func:could not bind to the requested symbol name:crypto/dso/dso_dlfcn.c:188:symname(bind_engine):，

        详细错误内容如上图。

解决方法：

        我是把原c文件改成cpp文件，用g++编译后出现了上面错误。我又改回去（改成.c文件，gcc编译）之后问题解决。

        具体原因不知道。大概原因可能是原先的编译可能导致某个编译选项没设置。

        

./build/basic_digest.o
call bind
EngineX has been successfully loaded
engine name :Engine example

解决后测试：

        

root@cd2e1925ffbe:/work/CyberSecurityCode/OSSL_EngineX/tests# openssl dgst -sha1 -engine /work/CyberSecurityCode/OSSL_EngineX/build/engine_ex.so plain.text
call bind
engine "engineX" set.
call sha1_init
call sha1_update
call sha1_final
SHA1(plain.text)= 86a6f5008a6194c19377fcfe1bd4464dcf2dc512
call sha1_init