On Mon, Aug 19, 2002 at 10:52:43PM -0400, Joe Phillips wrote: > I searched the mail list archives but nothing obvious turned up. > I'm attempting to package a project that has a handful of both > executables and libraries. > One of the libraries is a pam module that AFAIK depends on the some of > the other shared libraries. Currently, my package installs the shared > libraries in /usr/lib. I'm now trying to figure out what to do with the > PAM library. > the first issue is that the ./configure script has no way to say > 'install the PAM library here'. It basically goes where ever the other > libraries go - /usr/lib. > Now, I see that other Debian PAM libraries go into /lib/security/. I > understand the motivation for having PAM libraries under /lib, so I want > my PAM library to go there as well. As I understand it, we want PAM > libs in /lib so they're available even when /usr may not be - eg. early > in boot or a stripped-down system. some people like to nfs-mount /usr > for example - what if the server's down. > well, if /usr is unavailable, my PAM lib may fail to work even if it > were installed in /lib/security due to the fact that it depends on other > libs that are in /usr/lib. This means I may want to in fact have the > PAM lib's dependancies installed in /lib as well. <shrug> $ dpkg -L libpam-smbpass | grep so /lib/security/pam_smbpass.so $ ldd /lib/security/pam_smbpass.so | grep /usr libcups.so.2 => /usr/lib/libcups.so.2 (0x40096000) libk5crypto.so.3 => /usr/lib/libk5crypto.so.3 (0x400f5000) libkrb5.so.3 => /usr/lib/libkrb5.so.3 (0x40106000) libgssapi_krb5.so.2 => /usr/lib/libgssapi_krb5.so.2 (0x4015b000) liblber.so.2 => /usr/lib/liblber.so.2 (0x4016c000) libldap.so.2 => /usr/lib/libldap.so.2 (0x40178000) libsasl.so.7 => /usr/lib/libsasl.so.7 (0x402cd000) $ Basically, any PAM-enabled app that needs to function before /usr is mounted (are there any?) can't reference such a module in its PAM config file. If the module itself is in /usr, it will fail; if the libraries it depends on are in /usr, it will fail. But once /usr is mounted, it doesn't matter where the files are, so putting the module in /lib/security with all the rest of the PAM modules is as good a place as any. Since no Debian policy can keep admins from referencing files in /usr when they shouldn't, I think this is as good a solution as any. This is not policy, but it's the status quo; I can find at least 3 other PAM modules in Debian that handle this the same way. Steve Langasek postmodern programmer
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