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. Additional info: This is the same issue that was resolved in Firefox 2 via a callback: https://bugzilla.mozilla.org/show_bug.cgi?id=152426 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.
Also see: https://bugzilla.mozilla.org/show_bug.cgi?id=111384 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 supports. 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 as curl-devel. 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.
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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. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
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Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.