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* pam_namespace: don't use bashisms in default namespace.init scriptSteve Langasek2014-01-15
| | | | | | | | | | | | | | | | | | | | | | | | | * modules/pam_namespace/pam_namespace.c: call setuid() before execing the namespace init script, so that scripts run with maximum privilege regardless of the shell implementation. * modules/pam_namespace/namespace.init: drop the '-p' bashism from the shebang line This is not a POSIX standard option, it's a bashism. The bash manpage says that it's used to prevent the effective user id from being reset to the real user id on startup, and to ignore certain unsafe variables from the environment. In the case of pam_namespace, the -p is not necessary for environment sanitizing because the PAM module (properly) sanitizes the environment before execing the script. The stated reason given in CVS history for passing -p is to "preserve euid when called from setuid apps (su, newrole)." This should be done more portably, by calling setuid() before spawning the shell. Signed-off-by: Steve Langasek <vorlon@debian.org> Bug-Debian: http://bugs.debian.org/624842 Bug-Ubuntu: https://bugs.launchpad.net/bugs/1081323
* Fix whitespace issuesDmitry V. Levin2011-10-26
| | | | | | Cleanup trailing whitespaces, indentation that uses spaces before tabs, and blank lines at EOF. Make the project free of warnings reported by git diff --check 4b825dc642cb6eb9a060e54bf8d69288fbee4904 HEAD
* Relevant BUGIDs: Debian bug #518908Steve Langasek2009-08-31
| | | | | | | | | | | Purpose of commit: portability Commit summary: --------------- 2009-08-31 Steve Langasek <vorlon@debian.org> * modules/pam_namespace/namespace.init: make this portable to POSIX awk, instead of using GNU awk extensions.
* Relevant BUGIDs:Tomas Mraz2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Purpose of commit: new feature Commit summary: --------------- 2008-02-01 Tomas Mraz <t8m@centrum.cz> * modules/pam_namespace/namespace.conf.5.xml: Add documentation for tmpfs and tmpdir polyinst and for ~ user list modifier. * modules/pam_namespace/namespace.init: Add documentation for the new init parameter. Add home directory initialization script. * modules/pam_namespace/pam_namespace.8.xml: Document the new init parameter of the namespace.init script. * modules/pam_namespace/pam_namespace.c(copy_ent): Copy exclusive flag. (cleanup_data): New function. (process_line): Set exclusive flag. Add tmpfs and tmpdir methods. (ns_override): Change behavior on the exclusive flag. (poly_name): Process tmpfs and tmpdir methods. (inst_init): Add flag for new directory initialization. (create_dirs): Process the tmpdir method, add the new directory flag. (ns_setup): Remove unused code. Process the tmpfs method. (cleanup_tmpdirs): New function. (setup_namespace): Set data for proper cleanup. Cleanup the tmpdirs on failures. (pam_sm_close_session): Instead of parsing the config file again use the previously set data for cleanup. * modules/pam_namespace/pam_namespace.h: Add TMPFS and TMPDIR methods and exclusive flag.
* Relevant BUGIDs:Tomas Mraz2007-06-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Purpose of commit: bugfix, new feature Commit summary: --------------- 2007-06-15 Tomas Mraz <t8m@centrum.cz> * modules/pam_namespace/README.xml: Avoid duplication of documentation. * modules/pam_namespace/namespace.conf: More real life example from MLS support. * modules/pam_namespace/namespace.conf.5.xml: Likewise plus properly describe how instance directory names are formed. * modules/pam_namespace/namespace.init: Preserve euid when called from setuid apps (su, newrole). * modules/pam_namespace/pam_namespace.8.xml: Added option no_unmount_on_close. * modules/pam_namespace/pam_namespace.c (process_line): Polyinst methods are now user, level and context. Fix crash on unknown override user in config file. (ns_override): Add explicit uid parameter. (form_context): Skip for user method. Implement level based polyinstantiation. (poly_name): Initialize contexts. Add level based polyinst, remove 'both' metod. Use raw contexts for instance names, truncate long instance names and add hash. (ns_setup): Hashing moved to poly_name(). (setup_namespace): Handle correctly override users for su (when unmnt_remnt is used). (pam_sm_close_session): Added no_unmount_on_close option. * modules/pam_namespace/pam_namespace.h: Added no_unmount_on_close_option, level method, limit on instance directory name length.
* Relevant BUGIDs:Tomas Mraz2006-06-27
Purpose of commit: new feature Commit summary: --------------- * modules/pam_namespace/pam_namespace.c: New module originally written by Janak Desai. * modules/pam_namespace/Makefile.am: New. * modules/pam_namespace/README: New. * modules/pam_namespace/md5.c: New. * modules/pam_namespace/md5.h: New. * modules/pam_namespace/namespace.conf: New. * modules/pam_namespace/namespace.conf.5: New. * modules/pam_namespace/namespace.conf.5.xml: New. * modules/pam_namespace/namespace.init: New. * modules/pam_namespace/pam_namespace.8: New. * modules/pam_namespace/pam_namespace.8.xml: New. * modules/Makefile.am: Added pam_namespace. * configure.in: Added pam_namespace, test for unshare library call.