Next: Mozilla Compatibility, Previous: Features and Limitations, Up: Internals
Scute is single-threaded. There is a global lock that is taken in all
entry points of Scute, except for C_Initialize,
C_Finalize, C_GetFunctionList, and stubs.
Here are a couple of hints on how to develop PKCS #11 modules for Mozilla:
libopensc2 ships with a pkcs11-spy library that can be
loaded as a wrapper around the PKCS #11 library you want to use to log
all functions invoked by Mozilla. Here is how to use it:
Set the PKCS11SPY_OUTPUT environment variable to a filename.
pkcs11-spy appends its log messages at the end of this file. Set
the PKCS11SPY environment variable to the filename of the PKCS
#11 module you actually want to use. Start Mozilla within this
environment.
There is a different, probably more powerful way to debug Mozilla PKCS
#11 libraries. However, to be able to use it, you need to configure and
compile the Mozilla NSS sources with --enable-debug.
Instructions can be found at:
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/nss_tech_notes
Here are a couple of links to more information about implementing a PKCS #11 module for Mozilla:
Guidelines for implementors of PKCS #11 modules targeting Mozilla
PKCS #11 Conformance Testing
The Mozilla NSS web page