Description of problem:
NSS OCSP doesn't work behind a proxy. When configuring FC6 for smartcard login
with pam_pkcs11, OCSP can be enabled. However, if the system is behind a proxy,
OCSP requests fail because the NSS internal URL handler does not support
proxies. Failed OCSP requests cause login to be denied.
This is the same issue that was resolved in Firefox 2 via a callback:
However, in this case there is no callback to be had (pam_pkcs11 has no URL
handler). NSS needs to support proxies natively. This will clearly obviate the
patch linked to above.
As the companion bug that was resolved along with 152426.
Solving this at the NSS library is tricky, because it would require to extend
NSS with a http implementation which is available on all platforms that NSS
Maybe it is easier to solve this at the pam_pkcs11 application level, and
implement the http download callback using curl or wget?
As it seems difficult to implement complete handling of proxies inside NSS, in a
way that is compatible with all of NSS' licenses, and given the fact that we are
looking for a solution for Linux, my proposal is:
Implement the callback using one of the GPL libraries available on Fedora, such
Make the callback implementation available as a library package.
Have NSS automatically detect the presence of an external library that
implements the callback.
Have NSS inspect the usual environment variables that define a proxy on Linux
and if set, make use the proxy automatically.
Fedora apologizes that these issues have not been resolved yet. We're
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This bug is still in effect. My comment 3 is still correct.
Changing version to '9' as part of upcoming Fedora 9 GA.
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